Claude's new system prompt doesn't want to reproduce song lyrics

It's a (small) known problem with LLM. Last year my wife was trying to find the lyric of a popular songs for children here in Argentina wrote like 60 years ago [1], and one of the AI (I don't remember which) just wrote a somewhat similar lyric about a turtle.

[1] https://en.wikipedia.org/wiki/Manuelita_la_tortuga