instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'three men playing in a men's doubles tennis match'. Replace the letter 'e' with 'l' in the sentence.
answer:
thrll mln playing in a mln's doublls tlnnis match


question:
Sentence: 'a teddy bear playing a drum and a teddy bear playing a guitar'. Replace the letter 'd' with 'm' in the sentence.
answer:
a temmy bear playing a mrum anm a temmy bear playing a guitar


question:
Sentence: 'a clock pulls double duty as a business sign'. Replace the letter 'e' with 'a' in the sentence.
answer:

a clock pulls doubla duty as a businass sign