since in the titles, we'll be using a few owo
but not too many~

話題-topic (they all have this, open or not)
閉店-closed
乗組員-Crew, for the Crew Quarters
使用禁止-unused topic, therefore closed off (not the direct translation. direct is 'unavailable')
if it doesn't have one beyond the first, then it's open for all (unless it's the Crew Quarters)