Which prepositions are correct?
I am {on/at/in} the railway station.
I am {on/at/in} square.
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Sign up to join this communityI am on the railway station.
means you are on top of the railway station (like on the ceiling). Not likely.
I am at the railway station.
means you are there, location wise.
I am in the railway station.
means you are inside (the perimeter) of the railway station.