In this task, you need to replace a letter in the sentence with another given letter.
--------
Question: Sentence: 'a building has a clock on the top of it'. Replace the letter 'l' with 'x' in the sentence.

Answer: a buixding has a cxock on the top of it


Question: Sentence: 'a woman is holding a bowl of green brocolli'. Replace the letter 'o' with 'w' in the sentence.

Answer: a wwman is hwlding a bwwl wf green brwcwlli


Question: Sentence: 'three white birds that are flying low to the ground'. Replace the letter 'w' with 'y' in the sentence.

Answer:
three yhite birds that are flying loy to the ground