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

Sentence: 'a seafood dish served over a bowl of white rice'. Replace the letter 'e' with 'u' in the sentence.
a suafood dish survud ovur a bowl of whitu ricu

Sentence: 'someone playing frisbee with a dog in the middle of a court'. Replace the letter 'd' with 'r' in the sentence.
someone playing frisbee with a rog in the mirrle of a court

Sentence: 'a boy eating a trying to bite a hot dog without picking it up'. Replace the letter 'r' with 'f' in the sentence.
a boy eating a tfying to bite a hot dog without picking it up