TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'little tubs of rice and mixed vegetables for a meal'. Replace the letter 't' with 'z' in the sentence.

SOLUTION: lizzle zubs of rice and mixed vegezables for a meal

PROBLEM: Sentence: 'a group of men and women sitting next to each other'. Replace the letter 'p' with 'l' in the sentence.

SOLUTION: a groul of men and women sitting next to each other

PROBLEM: Sentence: 'a stop sign on right side of brick street with a person crossing it'. Replace the letter 'o' with 'n' in the sentence.

SOLUTION:
a stnp sign nn right side nf brick street with a persnn crnssing it