context: How to fix a squeaky desk chair
Check the nuts, bolts, and screws.
The first thing to do is turn the chair over, and look at all hardware. Get a screwdriver or wrench and tighten any loose ones.
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next sentence for the context: Even try to tighten the parts that don't appear loose. Over time, it is easy for screws and bolts to become loose, causing certain chair parts to rub together irregularly and create a squeaky noise.

context: Words on screen present "ricardinho 5 anos de magia" appear. Ricardinho appears running on several fields of play both indoors and out. he
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next sentence for the context: scores several goals into the nets at different games.

context: How to dress for prom
Pick a dress that is appropriate for your school.
Most schools have some sort of dress code that will dictate how revealing your prom dress can be. Check the dress code restrictions about acceptable hemlines, necklines, cutaways, and slits.
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next sentence for the context: Most prom dresses are long formal gowns, but some may have long slits up the leg. Check your school's prom handbook to determine if a gown with a long slit is allowed.

context: How to locate a leak in an air mattress
Remove sheets and bedding from the air mattress.
You won't be able to see holes or tears in the mattress with the bedding on.
Move the bedding to a safe place, away from the area where you will look for leaks so that its out of the way.
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next sentence for the context:
Move the air mattress to a place where you have room to maneuver. You will need to be able to walk around the mattress, flip it, and inflate it.