In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'some tracks for a rail way system near a building'. Replace the letter 'a' with 'h' in the sentence.

Answer: some trhcks for h rhil why system nehr h building


Question: Sentence: 'giraffes behind a fence in the trees'. Replace the letter 'h' with 'l' in the sentence.

Answer: giraffes belind a fence in tle trees


Question: Sentence: 'two students posing for a photo with their teacher in the classroom'. Replace the letter 'o' with 't' in the sentence.

Answer:
twt students ptsing ftr a phttt with their teacher in the classrttm