context: Two scientist throws stones in the water while talking. scientist
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next sentence for the context: writes a formula on a board, then the scientists run and jumps in the water.

context: How to kill grass
Mow the area of grass if it's taller than 3 inches (7.6 cm).
Short grass will give you an even surface to work on. Don't water the grass after you mow it.
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next sentence for the context: You want the grass to be as dried out as possible. Cover the grass with newspaper or cardboard.

context: A man is doing a gymnastics routine on parallel bars. he
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next sentence for the context: dismounts and lands on a mat.

context: He puts a toothpick in each section of the sandwich. He moves the sandwich from the board onto a plate. he
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next sentence for the context:
adds fries to the plate with the sandwich on it.