Sentence 1: Amy and her dad were driving out of state. 
 Sentence 3: Later she awoke and needed to use the restroom 
 Sentence 4:  Her dad was upset because she didn't go when the stopped for gas 
 Sentence 5:  They sat in angry silence for an hour after the second stop 
 Given Sentence 2: Amy kept sleeping when her dad awoke her at a gas station.