This game is based off of the japanese idea of Renga, which was itself the inspiration for Haiku.
In this game, you type keywords to form a poem. The game is quite adaptive, allowing you type all sorts of things.
This same adaptiveness makes it difficult to know how much in control you are. Typing Z over and over again will give you just fine poetry, but you can also directly influence it. This reminds me the most of Mirror and Queen.