In this task, you need to replace a letter in the sentence with another given letter.

[EX Q]: Sentence: 'a tennis player throwing a ball at the ground'. Replace the letter 'r' with 'f' in the sentence.
[EX A]: a tennis playef thfowing a ball at the gfound

[EX Q]: Sentence: 'street signs hanging next to a traffic light on a city street'. Replace the letter 'g' with 'm' in the sentence.
[EX A]: street simns hanminm next to a traffic limht on a city street

[EX Q]: Sentence: 'a birdhouse that is next to toy bears'. Replace the letter 'a' with 'm' in the sentence.
[EX A]:
m birdhouse thmt is next to toy bemrs