instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'there are peoople standign next to a bike'. Replace the letter 'o' with 't' in the sentence.
answer:
there are pettple standign next tt a bike


question:
Sentence: 'a couple giraffes walking through a fielded area'. Replace the letter 'e' with 'c' in the sentence.
answer:
a couplc giraffcs walking through a ficldcd arca


question:
Sentence: 'a man wearing glasses eating a pastry covered in glaze'. Replace the letter 'g' with 'u' in the sentence.
answer:

a man wearinu ulasses eatinu a pastry covered in ulaze