instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a man with scruffy hair wearing a tie and glasses'. Replace the letter 'r' with 'f' in the sentence.
answer:
a man with scfuffy haif weafing a tie and glasses


question:
Sentence: 'an older man wearing a suit and tie'. Replace the letter 'i' with 't' in the sentence.
answer:
an older man weartng a sutt and tte


question:
Sentence: 'a man standing in a sport coat and looking down at his hands as a woman passes in front of him'. Replace the letter 'o' with 'r' in the sentence.
answer:

a man standing in a sprrt crat and lrrking drwn at his hands as a wrman passes in frrnt rf him