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

[Q]: Sentence: 'a giraffe walking in its natural habitat on the savannah'. Replace the letter 't' with 'u' in the sentence.
[A]: a giraffe walking in ius nauural habiuau on uhe savannah

[Q]: Sentence: 'a man in a baseball cap watching something in the air'. Replace the letter 'g' with 'o' in the sentence.
[A]: a man in a baseball cap watchino somethino in the air

[Q]: Sentence: 'a tall giraffe walking around a brush land'. Replace the letter 'n' with 'a' in the sentence.
[A]:
a tall giraffe walkiag arouad a brush laad