TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a toddler on skis being held up by a grownup'. Replace the letter 'o' with 'k' in the sentence.

SOLUTION: a tkddler kn skis being held up by a grkwnup

PROBLEM: Sentence: 'a woman is talking on her white phone'. Replace the letter 'w' with 'r' in the sentence.

SOLUTION: a roman is talking on her rhite phone

PROBLEM: Sentence: 'the white kettle has a variety of cooked vegetables in it'. Replace the letter 'w' with 'j' in the sentence.

SOLUTION:
the jhite kettle has a variety of cooked vegetables in it