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

Sentence: 'a group of three giraffes standing around a fence'. Replace the letter 't' with 'a' in the sentence.
a group of ahree giraffes saanding around a fence

Sentence: 'there are people camping and flying kites in a field'. Replace the letter 't' with 'j' in the sentence.
jhere are people camping and flying kijes in a field

Sentence: 'a man standing on a beach flying a kite'. Replace the letter 'i' with 'x' in the sentence.

a man standxng on a beach flyxng a kxte