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

Sentence: 'a man is ordering food from a mobile food truck'. Replace the letter 'r' with 'q' in the sentence.
a man is oqdeqing food fqom a mobile food tquck

Sentence: 'a baseball player holding a bat in front of catcher and umpire'. Replace the letter 'i' with 'k' in the sentence.
a baseball player holdkng a bat kn front of catcher and umpkre

Sentence: 'a young man riding a skateboard up into the air'. Replace the letter 'u' with 'a' in the sentence.

a yoang man riding a skateboard ap into the air