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

Sentence: 'a baseball player running on a baseball field'. Replace the letter 'e' with 'h' in the sentence.
a bashball playhr running on a bashball fihld

Sentence: 'a man holding a baseball bat wearing a baseball uniform'. Replace the letter 'f' with 'h' in the sentence.
a man holding a baseball bat wearing a baseball unihorm

Sentence: 'a girl signing a guest book at a celebration'. Replace the letter 'o' with 'r' in the sentence.

a girl signing a guest brrk at a celebratirn