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

Q: Sentence: 'a man in black shirt laying on bed with a teddy bear'. Replace the letter 'd' with 'b' in the sentence.

A: a man in black shirt laying on beb with a tebby bear
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Q: Sentence: 'a study features the color green and old-fashioned furniture'. Replace the letter 'e' with 'd' in the sentence.

A: a study fdaturds thd color grddn and old-fashiondd furniturd
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Q: Sentence: 'there is a small black goat in the grass'. Replace the letter 't' with 'm' in the sentence.

A:
mhere is a small black goam in mhe grass
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