In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'two children who are standing next to a white fire hydrant'. Replace the letter 't' with 'r' in the sentence.

Answer: rwo children who are sranding nexr ro a whire fire hydranr


Question: Sentence: 'a skier in the midst of a jump'. Replace the letter 'm' with 'd' in the sentence.

Answer: a skier in the didst of a judp


Question: Sentence: 'a subway car is coming down the tracks'. Replace the letter 'n' with 'z' in the sentence.

Answer:
a subway car is comizg dowz the tracks