Sentence 1: Burt was very proud of his lawn. 
 Sentence 3: That's why he didn't like his neighbor's dog who sniffed around 
 Sentence 4:  He booed him away and didn't often succeed 
 Sentence 5:  Until he gave him food and kept him at bay 
 Given Sentence 2: He watered it every day and kept it in pristine shape.