instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'three young school girls waiting on a subway train platform'. Replace the letter 't' with 'o' in the sentence.
answer:
ohree young school girls waioing on a subway orain plaoform


question:
Sentence: 'people wait for a train on a snowy sidewalk'. Replace the letter 'n' with 'm' in the sentence.
answer:
people wait for a traim om a smowy sidewalk


question:
Sentence: 'two white vases on wooden crates holding flowers'. Replace the letter 'n' with 'j' in the sentence.
answer:

two white vases oj woodej crates holdijg flowers