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

[EX Q]: Sentence: 'many street signs in front of a building while it is snowing'. Replace the letter 'r' with 'x' in the sentence.
[EX A]: many stxeet signs in fxont of a building while it is snowing

[EX Q]: Sentence: 'street sign titled kittery maine state line in green'. Replace the letter 'e' with 'r' in the sentence.
[EX A]: strrrt sign titlrd kittrry mainr statr linr in grrrn

[EX Q]: Sentence: 'a group of people on motorcycles riding through  a rock tunnel and a sign says falling rock'. Replace the letter 'm' with 'x' in the sentence.
[EX A]:
a group of people on xotorcycles riding through  a rock tunnel and a sign says falling rock