Meaning representation: recommend(name[Portal 2], release_year[2011], player_perspective[first person])
Utterance: A first person game released back in 2011 that I enjoyed was Portal 2. Have you played it before?
Utterance: A 2011 first person game that I enjoyed was Portal 2. Have you played it?
Utterance: 2011 was a great year for first person games, with some of my all time favorites, like Portal 2, released. Are you familiar with it?