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

Sentence: 'a woman is holding a bowl of green brocolli'. Replace the letter 'o' with 'w' in the sentence.
a wwman is hwlding a bwwl wf green brwcwlli

Sentence: 'an umbrella sitting on top of a hill next to a body of water'. Replace the letter 't' with 'b' in the sentence.
an umbrella sibbing on bop of a hill nexb bo a body of waber

Sentence: 'a sign sitting on the side of a snow covered slope'. Replace the letter 'e' with 'g' in the sentence.

a sign sitting on thg sidg of a snow covgrgd slopg