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

Sentence: 'a train moving on a track during the day'. Replace the letter 't' with 'q' in the sentence.
a qrain moving on a qrack during qhe day

Sentence: 'a giraffe standing alone with a low fence behind it'. Replace the letter 't' with 'o' in the sentence.
a giraffe soanding alone wioh a low fence behind io

Sentence: 'three large elephants are strolling beside a small younger one'. Replace the letter 'o' with 'p' in the sentence.

three large elephants are strplling beside a small ypunger pne