These awful AI song lyrics show us how hard language is for machines

Among creative applications for algorithms, writing lyrics and poetry has proved particularly challenging. The art of producing lyrics with a machine also differs greatly from other tasks in natural-language processing. The ultimate goal is to be creative rather than accurate, which can have a difficult-to-pin-down definition. That didn't stop two researchers at Google from trying to create an automated lyric-generation machine. They approached the task with two separate machine-learning models.