Instruct: Classify Amazon reviews into positive or negative sentiment
Query: like a two-person diary

People have probably said this before, but it bears repeating: this is an absolutly fabulous book. It's like writing in a diary, and having the diary write back to you. READ IT!!!!! Just read P.S. Longer Letter Later first because Elizabeth and Tara*Starr make lots of references to things that happened in that book, and Snail Mail No More wouldn't make any sense if you havn't read P.S. Longer Letter First