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

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


[Q]: Sentence: 'two girls holding blue umbrellas wearing shirts and plastic'. Replace the letter 'd' with 'y' in the sentence.
[A]: two girls holying blue umbrellas wearing shirts any plastic


[Q]: Sentence: 'the train is traveling on the rather elevated rail'. Replace the letter 'i' with 'u' in the sentence.
[A]:
the traun us travelung on the rather elevated raul