instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a man eats while holding himself up in a one-hand push up position'. Replace the letter 'i' with 'p' in the sentence.
answer:
a man eats whple holdpng hpmself up pn a one-hand push up posptpon


question:
Sentence: 'a woman standing in front of a bear in an enclosure'. Replace the letter 'e' with 'r' in the sentence.
answer:
a woman standing in front of a brar in an rnclosurr


question:
Sentence: 'a cat that is sitting on the ground'. Replace the letter 'd' with 'm' in the sentence.
answer:

a cat that is sitting on the grounm