TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'bananas, oranges and apples are in shades of yellow and orange'. Replace the letter 'r' with 'b' in the sentence.

SOLUTION: bananas, obanges and apples abe in shades of yellow and obange

PROBLEM: Sentence: 'a cat got caught hiding in the cupboard'. Replace the letter 'i' with 'u' in the sentence.

SOLUTION: a cat got caught hudung un the cupboard

PROBLEM: Sentence: 'three people cutting pieces of a white cake with red berries'. Replace the letter 'i' with 'g' in the sentence.

SOLUTION:
three people cuttgng pgeces of a whgte cake wgth red berrges