In this task, you need to replace a letter in the sentence with another given letter.

Sentence: 'a close up of a train on train tracks at night'. Replace the letter 'n' with 'm' in the sentence.
a close up of a traim om traim tracks at might

Sentence: 'a man is standing at the base ball triangle with bat in tow'. Replace the letter 'n' with 'c' in the sentence.
a mac is stacdicg at the base ball triacgle with bat ic tow

Sentence: 'an old hall in a large stone building'. Replace the letter 'd' with 't' in the sentence.

an olt hall in a large stone builting