sentence: An introduction comes onto the screen for a video about home repair. sentence:  Two men on a roof are trying to fix a leak in a pipe located on top of the roof. sentence:  One of the men points out the flaws in the pipe that caused it to leak as well as prepares the pipe to be fixed. sentence:  After preparing the pipe, the man puts some rubber compound around the pipe and attaches a new gasket. sentence:  The video ends with a closing caption shown on the screen.