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

Input: Consider Input: Sentence: 'a basket holds flowers, twigs, and various fruits'. Replace the letter 'a' with 'g' in the sentence.

Output: g bgsket holds flowers, twigs, gnd vgrious fruits

Input: Consider Input: Sentence: 'a person is riding a motorcycle as part of some kind of performance'. Replace the letter 'm' with 'a' in the sentence.

Output: a person is riding a aotorcycle as part of soae kind of perforaance

Input: Consider Input: Sentence: 'two different kinds of donuts on a plate'. Replace the letter 'a' with 'c' in the sentence.
Output: two different kinds of donuts on c plcte