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

Sentence: 'a single person is working in the cluttered kitchen'. Replace the letter 'n' with 'e' in the sentence.
a siegle persoe is workieg ie the cluttered kitchee

Sentence: 'a woman is talking on her white phone'. Replace the letter 'w' with 'r' in the sentence.
a roman is talking on her rhite phone

Sentence: 'elephants at the zoo standing in front of a waterfall'. Replace the letter 'h' with 'b' in the sentence.

elepbants at tbe zoo standing in front of a waterfall