Sentence 1: Like many people, I order photo Christmas cards each year. 
 Sentence 3: I am a transit buff, so I feature photos of subway cars and trolleys 
 Sentence 4:  I used to work for a transit system, and compiled a lot of photos 
 Sentence 5:  My family and friends now expect a transit Christmas card each year 
 Given Sentence 2: Unlike many, I do not use photos of family or pets.