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

Ex Input:
Sentence: 'a woman is snowboarding down a snowy hill'. Replace the letter 'l' with 'b' in the sentence.

Ex Output:
a woman is snowboarding down a snowy hibb


Ex Input:
Sentence: 'a table with three different plates and several drinks on it'. Replace the letter 't' with 'x' in the sentence.

Ex Output:
a xable wixh xhree differenx plaxes and several drinks on ix


Ex Input:
Sentence: 'there are only a few people in the bus'. Replace the letter 'n' with 'd' in the sentence.

Ex Output:

there are odly a few people id the bus