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

Sentence: 'a zebra is eating hay in a fenced enclosure'. Replace the letter 'e' with 'i' in the sentence.
a zibra is iating hay in a fincid inclosuri

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

Sentence: 'a united jet liner flying through the air'. Replace the letter 'u' with 'o' in the sentence.

a onited jet liner flying throogh the air