Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Horrible assembly!!

I had wondered why I found this so cheap...only 19.99 last Christmas. I can only imagine it was so inexpensive, because it is impoosible to put together!! We tried to assemble it a few times, but it never worked out (I'm convinced we are missing a few pieces!) The instuctions are basically just pictures and nothing is coded, so it's hard to figure out. This year, I'm getting my son the Imaginext Batman Batcave, which was a hugh hit with my nephew last year...and comes fully assembled! Unless you have tons of time on your hands and lots of patience, I don't suggest buying the t-rex.