context: How to track luggage
Go to the counter of your airline to report your missing bag.
As soon as you notice your luggage is gone, visit a customer service representative for your airline to get assistance. You can do this both at the ticketing window and when you are inside the gate.
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next sentence for the context: Mention what your baggage looks like and where you last saw it. Give a detailed description of your luggage, including any special identifying features like luggage tags or bright colored outer shell.

context: How to prevent a dog from defecating in its crate
Make sure the crate is the right size.
Oftentimes, dogs will defecate in their crate if it's too big. If the crate is large enough that your dog can comfortably poop in a corner he might choose to go in his crate rather than wait to be let out.
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next sentence for the context: Your dog's crate should be just big enough for him to stand up and turn around in and lie down with his legs straight. Anything bigger might make him tempted to use the crate as a bathroom.

context: How to cook gluten free spaghetti
Fill a large pot with 4 us quarts (3.8 l) of water.
Use a large pot that can hold a minimum of 6 us quarts (5.7 l) of water so that it doesn't overflow when you add the pasta. Place the pot on top of your stovetop after you fill it.
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next sentence for the context: Add 1.2 ounces (34 g) of salt to the water. You can use kosher or coarse salt.

context: How to calculate the value of scrap gold
Use a magnifying glass to decipher the karat number on each piece.
The first thing you have to do is find out. Separating your gold by its karat weight will not only help you begin to assess its value, but it can point out items that are not even gold.
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next sentence for the context:
If it is unreadable, you could choose to have the gold tested by a reputable dealer. There's also the possibility that some of the gold is actually just gold-plated, which a dealer would determine with certainty by performing a chemical test.