instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a toddler on skis being held up by a grownup'. Replace the letter 'o' with 'k' in the sentence.
answer:
a tkddler kn skis being held up by a grkwnup

question:
Sentence: 'a bathroom that has a sink and a toilet'. Replace the letter 's' with 'a' in the sentence.
answer:
a bathroom that haa a aink and a toilet

question:
Sentence: 'a person in a coat and goggles carrying a snowboard'. Replace the letter 'p' with 'z' in the sentence.
answer:
a zerson in a coat and goggles carrying a snowboard