Sentence 1: Lisa made chili for her boyfriend. 
 Sentence 3: He jumped up after the first bite for a glass of water 
 Sentence 4:  Lisa tasted the chili 
 Sentence 5:  She had put in 3 tablespoons of hot sauce instead of 3 teaspoons 
 Option 1: She had a salad first, so he started eating the chili before her. 
 Option 2: He couldn't eat it because he'd broken his jaw.