Sentence 1: Bob asked his new girlfriend, Sheila, to go camping one weekend. 
 Sentence 3: Soon, however, she found she didn't like camping with Bob's big dog 
 Sentence 4:  Bob broke up with Sheila a few weeks later 
 Sentence 5:  He says he needs a woman who really likes his dog too 
 Given Sentence 2: At first, Sheila was excited as the weekend began.