Write an article based on this "Use this method for logic problems that ask you to match multiple categories together. Read the puzzle carefully and make a list of basic information. On graph paper, make a list of every item you wrote down. Write the lists again across the top. Make a grid. Cross out sections of the grid you don't need. Move on to the next part to solve your puzzle."
article: Typically, these have a description or a list of facts that describes a group of people, or houses, or other objects. The question usually has to do with matching two categories together, or listing the order a group is placed in. Many books and websites that contain collections of logic puzzles use this type of puzzle. Here's an example problem: Three friends named Anna, Brad, and Caroline agree to bring one dessert each to a birthday party. Each friend is wearing a different color shirt. Anna wears a blue shirt. The person who brought brownies couldn't find her red shirt today. Brad didn't bring any dessert at all, which made the person wearing a yellow shirt irritated. Which person brought the ice cream? The example question, like all logic puzzles of this type, asks you to match two categories together. You start out knowing the names of several people and the names of several desserts, but you don't know who brought which dessert. Using the clues in the description, you need to figure out how to match each person to a dessert until you know who brought the ice cream. There's actually a third category, shirt color, which should help you get to your answer. Note: skip to Using a Grid if the puzzle already comes with a grid set up. Skip to Solving Other Logic Puzzles if your puzzle does not fit this description. Sometimes, the puzzle will already give you a list of names, colors, or whatever other basic information makes up the puzzle. Often, you'll have to read the puzzle carefully and make several lists yourself. Keep an eye out for the word "each": that often tells you which categories are important. For instance, "each person brought a different dessert" tells you that you need a list of people and a list of desserts. Write each list separately. When the puzzle mentions a name, add it to a list of names. When the puzzle mentions a color, add it to a separate list of colors. Each list should have the same number of items once you've finished. If a list is too short, reread the puzzle carefully for more items. Some tricky puzzles will give you hints about what someone doesn't have, such as "Brad didn't make a dessert." In this case, you should add "none" to the list of desserts, which should make it the same length as the other lists. Write a vertical column on the left hand side of the paper, with every item you wrote down on a list on a separate line. Keep each list together and separate them with a thick line. For instance, let's say you have three lists. Names: Anna, Brad, Caroline; Desserts: brownies, ice cream, none; and Color of Shirts: red; blue, yellow. Write a vertical list in this order: Anna; Brad; Caroline; (draw a thick line here); brownies; ice cream; none; (draw a thick line here); red; blue; yellow. Write the lists again across the top of the page, in a horizontal line this time. Keep them in the same order, and separate lists with thick lines as before. In our example, write Anna; Brad; Caroline; (thick line here); brownies; ice cream; none; (thick line here); red; blue; yellow across the top. Once you're more familiar with this system, you can get away with not writing every list in both places. We will be using this grid to match items in the vertical list (on the left) to items in the horizontal list (at the top), and sometimes you don't need to match every item. If you've never used this method before, stick with these instructions Add pen or pencil lines to your graph paper so the grid is clear. Each word on the left should have a row to itself, and each word on the top should have a column to itself. Make the thick lines dividing lists extend all the way across the grid, keeping them much thicker and more noticeable than the other lines. The thick lines between lists should divide your grid into several sections (nine in our example). Each section is a comparison of one list on the left and one list on the top. Follow these instructions to cross off sections you don't need, either using a large X or by scribbling over it. Be careful not to cross the thick lines into another section. If the list to the left of a section and the list above a section are the same, cross it out. You'll never need to compare the list "Anna, Brad, Caroline" to the list "Anna, Brad, Caroline" you already know that Anna is Anna. Cross out duplicate sections. For instance, the section that compares "Anna, Brad, Caroline" on the left and "red, blue yellow" on the top is the same as the section that compares "red, blue, yellow" on the left and "Anna, Brad, Caroline" on the top. Cross off one of these duplicate sections so you only have one to pay attention to. It doesn't matter which you cross off. Now that you have the grid set up, you can use it to solve your puzzle. The basic idea is to use the clues in the puzzle to rule out certain combinations by placing an "X" or other mark in the square of the grid that represents that combination. See the next part for more information.

Write an article based on this "Purchase home brewing ingredients. Boil the water and sugar. Pour the sugar water into the bucket. Add the soda extract and yeast. Mix them in thoroughly until both have completely dissolved. Pour the mixture into bottles. Store the bottles at 70F (21C). Test for carbonation. Chill the bottles."
article: Making soft drinks from scratch means actually purchasing the ingredients that are used to cause carbonation to occur in water. They're available at home brewing stores or online. You'll need the following: A 5 gallon (18.9L) bucket Plastic bottles with caps, for storing the finished soft drinks A large stock pot A large stirring spoon 8 cups of sugar Flavoring of your choice 1 packet champagne brewer's yeast Soda extract Kitchen thermometer In the big stock pot, pour in 2 gallons (7.6L) of water and 8 cups of sugar. Bring the mixture to a boil and stir until the sugar has dissolved into the water. At this point you can add any spices or flavorings you'd like to add, such as ginger (to make ginger ale) or lemon peel. Let the spices cook with the sugar. Once the sugar has dissolved, strain the spices from the mixture before proceeding. To make it less concentrated, add 2 more gallons of cold water to the mix. Let the mixture cool down a bit, but not too much; it should be between 70 and 80 degrees F. Test with the kitchen thermometer to make sure it's at the right temperature before proceeding. If the mixture gets too cold, you'll have to heat it back up before adding the soda extract and yeast. If your bucket has a spigot, use that to fill the bottles; otherwise you can place a funnel in a bottle and ladle soda into it a cup at a time. When the bottles are full, screw on the caps tightly. At this temperature, the yeast will consume the sugar and begin to ferment, creating carbon dioxide. It will take 2-3 days for the water to become carbonated. Squeeze the plastic bottles. If they feel firm when you squeeze them, the water is carbonated. If the bottles indent easily, they need more time. When the bottles are ready, put them in the refrigerator to cool down. When they're cold, open one up and enjoy your homemade soda.

Write an article based on this "Find the series of numbers on the sidewall. Recognize that the first letter denotes the service type. Note that the first 3-digit number identifies the tire width. Understand that the following 2-digit number is the aspect ratio."
article:
Tires are manufactured with the tire size printed on the sidewall. The sidewall is the outer wall of the tire, rather than the tread that contacts the road. The size should be printed underneath the tire manufacturer name, just above the rim of the tire. For instance, the series may look like this: P 225 / 50 R 17 98 H On some tires, the series of numbers begins with a letter. "P" stands for "P-metric" and denotes a passenger vehicle. "LT" stands for light truck, "T" means temporary spare, and "C" stands for commercial. If you're purchasing a spare or new tire, you'll need to choose the same service type as the rest of the tires. The 3-digit number before the slash denotes the tire width, which is measured from sidewall to sidewall and corresponds to the tread that contacts the road. The measurement is given in millimeters, and all 4 tires must have the same width. For instance, if the first number is 225, the tire tread is 225 mm wide. The numbers after the slash indicate the aspect ratio, which compares the tire's section height with the tire's section width. If you're replacing only 1 tire, make sure it has the same aspect ratio as the others. For example, if there is a "50" after the slash it means the tire's section height is 50% of the tire's section width.