Sentence 1: Jim's neighbor was an older lady who had suffered a stroke. 
 Sentence 3: He went and knocked on the lady's door 
 Sentence 4:  He entered to find a birthday banner stretched across the room 
 Sentence 5:  That was when he learned his neighbor was turning 100 years old! 
 Given Sentence 2: One day Jim noticed people scuttling in and out of the lady's door.