In this task, you need to replace a letter in the sentence with another given letter.

Q: Sentence: 'a person is waiting for a pizza to come out of an oven fired grill'. Replace the letter 's' with 'k' in the sentence.

A: a perkon ik waiting for a pizza to come out of an oven fired grill
****
Q: Sentence: 'a person jumping up in the air on a snowboard'. Replace the letter 'r' with 'o' in the sentence.

A: a peoson jumping up in the aio on a snowboaod
****
Q: Sentence: 'a pizza with onions peppers and cheese and coke to drink'. Replace the letter 's' with 't' in the sentence.

A:
a pizza with oniont peppert and cheete and coke to drink
****