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

Sentence: 'a couch, footrest, tv and other furniture are arranged in a living room'. Replace the letter 'o' with 'g' in the sentence.
a cguch, fggtrest, tv and gther furniture are arranged in a living rggm

Sentence: 'a couple of giraffe standing next to each other near  a fence'. Replace the letter 'f' with 'j' in the sentence.
a couple oj girajje standing next to each other near  a jence

Sentence: 'a woman taking a swing at a tennis ball'. Replace the letter 'a' with 'b' in the sentence.

b wombn tbking b swing bt b tennis bbll