instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a boy riding his skate board on an obstacle course'. Replace the letter 'e' with 'b' in the sentence.
answer:
a boy riding his skatb board on an obstaclb coursb


question:
Sentence: 'a woman is playing tennis on the tennis court'. Replace the letter 'r' with 'z' in the sentence.
answer:
a woman is playing tennis on the tennis couzt


question:
Sentence: 'man in kitchen preparing mixture for meat dish'. Replace the letter 'n' with 'm' in the sentence.
answer:

mam im kitchem preparimg mixture for meat dish