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

Sentence: 'this is a seafood platter with lobster and corn on the cob'. Replace the letter 't' with 'z' in the sentence.
zhis is a seafood plazzer wizh lobszer and corn on zhe cob

Sentence: 'a group of giraffe standing on top of a dirt field'. Replace the letter 'a' with 'y' in the sentence.
y group of giryffe stynding on top of y dirt field

Sentence: 'i have never seen a skateboarder skateboard on the wall before'. Replace the letter 'o' with 'h' in the sentence.

i have never seen a skatebharder skatebhard hn the wall befhre