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

Sentence: 'a couple of giraffe standing next to each other'. Replace the letter 't' with 'c' in the sentence.
a couple of giraffe scanding nexc co each ocher

Sentence: 'a man riding a snowboard on the side of a wall'. Replace the letter 'm' with 'p' in the sentence.
a pan riding a snowboard on the side of a wall

Sentence: 'a view of a group of people standing around in a dirty old room'. Replace the letter 'i' with 'k' in the sentence.
a vkew of a group of people standkng around kn a dkrty old room