TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'broccoli and a sweet potato are served on a white plate'. Replace the letter 'o' with 'c' in the sentence.

SOLUTION: brccccli and a sweet pctatc are served cn a white plate

PROBLEM: Sentence: 'a crowd watches as giraffes graze the tree tops at the zoo'. Replace the letter 't' with 'q' in the sentence.

SOLUTION: a crowd waqches as giraffes graze qhe qree qops aq qhe zoo

PROBLEM: Sentence: 'group of horses in a field with a pinto in the foreground'. Replace the letter 'r' with 'q' in the sentence.

SOLUTION:
gqoup of hoqses in a field with a pinto in the foqegqound