In this task, you need to replace a letter in the sentence with another given letter.

Sentence: 'a tower type building structure with a large clock and many windows in front of a cloudy blue sky'. Replace the letter 'n' with 'x' in the sentence.
a tower type buildixg structure with a large clock axd maxy wixdows ix froxt of a cloudy blue sky

Sentence: 'the baseball player is swinging his bat as the player gets ready to catch'. Replace the letter 'h' with 'o' in the sentence.
toe baseball player is swinging ois bat as toe player gets ready to catco

Sentence: 'a person on a surfboard in a wave pool'. Replace the letter 'a' with 'x' in the sentence.

x person on x surfboxrd in x wxve pool