American here, probably late to this video, but "Houston", as in Houston, TX, is correctly pronounced by all three English speakers, but many times, British natives pronounce it wrong. This is probably why you included it. Also, there is a famous street in New York City called Houston Street, which is pronounced "How-sten".
"the carribBEan" is the name of the place; "caRIBbean" is the adjective to describe things from there. But people often use "caRIBbean" as the place name even though it's technically incorrect.
@ジョンストーナー Жыл бұрын
there's no way there's an actual technical rule for this
The Aussie girl says quite a few words very differently to how most Aussies would say it, particularly the place names: Moscow, Copenhagen, Kuwait etc. What city is she from? I'm from Melbourne and never heard those pronunciations before from an Aussie.