In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a herd of zebra stand together and eat grass'. Replace the letter 'n' with 'r' in the sentence.

Answer: a herd of zebra stard together ard eat grass


Question: Sentence: 'a baseball player is throwing a ball across the dirt field'. Replace the letter 'a' with 't' in the sentence.

Answer: t btsebtll pltyer is throwing t btll tcross the dirt field


Question: Sentence: 'a close up of a train on train tracks at night'. Replace the letter 'n' with 'm' in the sentence.

Answer:
a close up of a traim om traim tracks at might