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

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: 'a close up of a grassy beach showing an umbrella and wind board'. Replace the letter 'a' with 'f' in the sentence.
f close up of f grfssy befch showing fn umbrellf fnd wind bofrd

Sentence: 'there are people that are standing near the bus'. Replace the letter 'o' with 'g' in the sentence.

there are pegple that are standing near the bus