instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a person is riding a motorcycle as part of some kind of performance'. Replace the letter 'm' with 'a' in the sentence.
answer:
a person is riding a aotorcycle as part of soae kind of perforaance


question:
Sentence: 'a giraffe walking in its natural habitat on the savannah'. Replace the letter 't' with 'u' in the sentence.
answer:
a giraffe walking in ius nauural habiuau on uhe savannah


question:
Sentence: 'a bouquet of roses are placed on a table'. Replace the letter 'b' with 'i' in the sentence.
answer:

a iouquet of roses are placed on a taile