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

Sentence: 'a dog wearing a hat on top of it's head'. Replace the letter 'g' with 'o' in the sentence.
a doo wearino a hat on top of it's head

Sentence: 'a group of people play a video game in a living room'. Replace the letter 'p' with 'u' in the sentence.
a grouu of ueoule ulay a video game in a living room

Sentence: 'a bathroom area with sink, two mirrors and a towel rack'. Replace the letter 'o' with 'j' in the sentence.

a bathrjjm area with sink, twj mirrjrs and a tjwel rack