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

Sentence: 'a couple of giraffe standing next to each other in a forest'. Replace the letter 'a' with 'w' in the sentence.
w couple of girwffe stwnding next to ewch other in w forest

Sentence: 'a couple of giraffe standing next to each other'. Replace the letter 'i' with 'q' in the sentence.
a couple of gqraffe standqng next to each other

Sentence: 'a man sits in a car holding his cat'. Replace the letter 'i' with 'h' in the sentence.

a man shts hn a car holdhng hhs cat