January 9, 2017 at 6:46 am
#2940

Participant
I know this is an old post, but I wanted to say that this explanation helps a lot. I also thought the “coffee is the only substance she consumes that contains caffeine” would be necessary especially if you negate it. But it did not dawn on me that the subject is the topic of excess and this statement negated doesn’t address that so it cannot be necessary.