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

[EX Q]: Sentence: 'a group of people hanging around holding umbrellas'. Replace the letter 'p' with 'f' in the sentence.
[EX A]: a grouf of feofle hanging around holding umbrellas

[EX Q]: Sentence: 'an overhead view of a city cross walk on a rainy day features an array of colorful umbrellas'. Replace the letter 's' with 'd' in the sentence.
[EX A]: an overhead view of a city crodd walk on a rainy day featured an array of colorful umbrellad

[EX Q]: Sentence: 'dog in the air to catch a frisbee while a man lays on the ground'. Replace the letter 'n' with 'i' in the sentence.
[EX A]:
dog ii the air to catch a frisbee while a mai lays oi the grouid