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 man eats while holding himself up in a one-hand push up position'. Replace the letter 'i' with 'p' in the sentence.
answer:
a man eats whple holdpng hpmself up pn a one-hand push up posptpon


question:
Sentence: 'a person on a skateboard does an air trick'. Replace the letter 'o' with 's' in the sentence.
answer:

a perssn sn a skatebsard dses an air trick