Sentence 1: Pedro went to feed his dog, Rufus but couldn't find him anywhere. 
 Sentence 3: Nobody had seen Rufus anywhere, so Pedro put up signs looking for him 
 Sentence 4:  As he was taping a sign to a telephone pole, he heard a bark 
 Sentence 5:  The barking got closer and closer until Pedro saw Rufus! 
 Given Sentence 2: They wanted to announce it in a fun way.