instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a couple of giraffe standing next to each other'. Replace the letter 'i' with 'q' in the sentence.
answer:
a couple of gqraffe standqng next to each other


question:
Sentence: 'a giraffe standing alone with a low fence behind it'. Replace the letter 't' with 'o' in the sentence.
answer:
a giraffe soanding alone wioh a low fence behind io


question:
Sentence: 'a couple of horses running along the beach'. Replace the letter 'n' with 'u' in the sentence.
answer:

a couple of horses ruuuiug aloug the beach