Sentence 1: Mason made a deal that he could have a phone if he saved up for it. 
 Sentence 3: When he finally saved enough, he went out to the store to look 
 Sentence 4:  The new iPhone caught his eye immediately 
 Sentence 5:  He walked out of the store already texting his friends 
 Given Sentence 2: He spent the summer doing odd jobs to save up cash.