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

Sentence: 'a man stands next to a basketball as it sits on the floor'. Replace the letter 'n' with 'o' in the sentence.
a mao staods oext to a basketball as it sits oo the floor

Sentence: 'an umbrella sitting on top of a hill next to a body of water'. Replace the letter 't' with 'b' in the sentence.
an umbrella sibbing on bop of a hill nexb bo a body of waber

Sentence: 'a giraffe in a grassy area in the woods'. Replace the letter 'r' with 'o' in the sentence.

a gioaffe in a goassy aoea in the woods