"I am seeing a staircase."
Translation:Tha mi a' faicinn staidhre.
tha mi a' faicinn staidhre is - I am seeing A staircase. "an staidhre" would be THE staircase. But the previous translation was tha mi ann an eaglais - for which I answered, in THE church, but that was wrong - the answer was A church There will be a very simple grammatical rule behind this, but I have not twigged it yet.