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

Sentence: 'a little girl is sitting in a suitcase in a library'. Replace the letter 't' with 'l' in the sentence.
a lillle girl is silling in a suilcase in a library

Sentence: 'a large elephant that has people all around it'. Replace the letter 'h' with 'm' in the sentence.
a large elepmant tmat mas people all around it

Sentence: 'a group of women are sitting at a table eating lunch'. Replace the letter 'e' with 'k' in the sentence.

a group of womkn ark sitting at a tablk kating lunch