Even Greener Pastures

An interesting question. I hadn't realised they had different meanings in the US: in English, Scottish, Irish and Northern Ireland law they're completely synonymous.

Incidentally, Kseniia, on the subject of prison, have you ever heard of Jailge? I think you might find this interesting (but if nothing else, at least you can listen to some Belfast accents -- hopefully you'll be able to understand, because I see that the automatically generated subtitles can't cope): https://www.youtube.com/watch?time_continue=244&v=0Q0mBBHt8fQ. Feargal's (who I was at university with) own father learnt Irish when he was interned (imprisoned without trial).