Article: Topspin is created by striking the ball with what’s called a “closed racket,” which means you hold the racket facing low toward the ground. These serves work best when they’re fast and hit the back of your opponent’s side of the table. Using a closed racket, brush the top of the ball in a quick forward motion with your racket. The ball will rise as it moves away from you and then curve downward. Backspin uses an “open racket,” which means you hold the racket facing up toward the ceiling. Backspin serves are also known as “under-spin” serves. These low, short serves can be super useful against players who like to attack the ball during the return. Using an open racket, brush the bottom of the ball in a quick forward motion with your racket. Keep the ball low and straight as it travels over the net. Hit the ball on the left to get it to rotate right, and on the right to get it to rotate left. This will cause the ball to bounce in those directions. These tricky serves can be very difficult to return, as your opponent won’t know which direction they need to run in to get the ball. Snapping your wrist gives you really quick contact with the ball, adding speed. This speed will add more spin to your serves, making your serves much more difficult to return. Practice developing this snap every time you serve.
Question: What is a summary of what this article is about?
Use a closed racket for topspin. Graze the ball from the top for topspin. Use an open racket for backspin. Graze the ball from the bottom for backspin. Graze the ball on the sides to get sidespin. Use fast wrist actions to improve your spins.

Problem: Article: If your bike is too big, you'll have more trouble maneuvering it through traffic, so make sure you have one that you can control. Similarly, ensure all the parts of the bike work, including the brakes, so that you can stop when you need to. Make sure the helmet fits snugly but covers your head down to your ears. Push it forward so you only have 2 fingers between the front of the helmet and your eyebrows. Adjust the side straps so the bottom part of the "V" fits just below your ears. Once you click the strap under your chin, tighten it to make sure you have a secure fit. A helmet can save you from serious head injuries if you are in an accident. The more visible you are, the more likely drivers are to see you on the road. Put a white headlight on the front of your bike and a red light on the back, making yourself easier to see. Also, reflectors all over the bike will help increase your visibility at night. You can find bike light kits at most big box stores and online. Bright colors will help people see you during the day. They can also help at night, but reflective clothing is even better. Try to carry a reflective vest just for this purpose. A vest like a construction person wears is a good option. It's bright and has reflective material. Make sure you are wearing shoes, pants, and tops that are comfortable and suit the bicycle. Don't wear anything too loose that could get caught in the wheels. Pick shoes without heels that have non-slip soles. Trying to ride a bicycle in heels will give you less control over the bike, which could result in an accident. Make sure you fasten it to your back so it doesn't shift around while you're riding. Alternatively, you can mount specially designed bike bags on your bike. These bags are more comfortable to ride with than a regular backpack. Avoid dangling loose bags from your handlebars or other parts of your bike since they could get caught in the wheels. Drivers won't always be able to see you, so you need to be able to announce your presence audibly, too. With a horn or bell, you can let drivers know you're nearby so that they know to look out for you. You can find horns and bells online or at big box stores. Make sure the one you choose is loud enough that drivers will be able to hear it in their cars.
Summary: Ensure your bike fits you and works well. Wear a helmet that fits properly to protect your head. Add lights to your bike. Wear bright clothing during the day and reflective clothing at night. Wear comfortable clothing that won't get in the way. Place your cargo in a backpack to keep it out of the way. Put a horn or bell on your bike.

INPUT ARTICLE: Article: Find a spare sock with a long cuff that will fit around your doll’s torso, such as a baby sock for a Barbie doll or an adult size sock for a larger doll. You can use a solid color sock or a sock with designs printed on it. Then, cut the sock where the cuff meets the ankle of the sock. If desired, you can trim the sock cuff down even more for a shorter skirt or dress. If you want to make a sock dress, then you will need to cut armholes in the sock. Cut a small hole out of each side of the sock about 0.5 inches (1.3 cm) to 1 inch (2.5 cm) from the top edge of the sock cuff. Make sure the holes are large enough for your doll’s arms to fit through. Don't worry if you make the armholes too small. You can always make them wider later. You don’t need to add any decorations to your sock dress or skirt, but you can if you want to. Add these decorations and let the glue dry before you put the sock dress or skirt on your doll.  Use fabric paint on the sock to create polka dots, stripes, or another design. Glue on some beads, sequins, or jewels. Use a piece of ribbon or scrap fabric to make a belt or decorative sash for the dress or skirt. Slide the sock onto the doll by putting her legs through the sock dress or skirt first. Insert her arms through the armholes if you made a sock dress.

SUMMARY: Cut the cuff section of a sock from the foot section. Cut out armholes for a dress. Decorate the sock if desired. Put the sock dress or skirt on the doll.

How long this takes depends on how dry or humid it is where you live. Paint will dry faster in dry climates and slower in humid climates. As the paint dries, it will take on a more chalky finish. Discard any leftover paint from when you applied the first coat; this type of paint does not store well, even in closed containers. This is very important. Just because paint feels dry to the touch does not mean that it is dry underneath and ready to use. Leave your project alone for 3 full days. If you use it too soon, the paint may peel off or turn tacky. Do not seal the paint with wax or acrylic sealers, or you won't be able to use it as a chalkboard.
++++++++++
One-sentence summary --
Let the paint dry for a few hours. Let the paint dry and cure for 3 days.