instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'many people gathered on a sunny day flying kites'. Replace the letter 'e' with 'm' in the sentence.
answer:
many pmoplm gathmrmd on a sunny day flying kitms


question:
Sentence: 'a herd of cattle standing on a lush green field'. Replace the letter 'g' with 'f' in the sentence.
answer:
a herd of cattle standinf on a lush freen field


question:
Sentence: 'a man riding a wave on top of a surfboard'. Replace the letter 'd' with 'z' in the sentence.
answer:

a man rizing a wave on top of a surfboarz