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

Sentence: 'a small child reaching back with a wii remote'. Replace the letter 'l' with 'o' in the sentence.
a smaoo chiod reaching back with a wii remote

Sentence: 'a gray and white cat sleeping on top of a laptop computer'. Replace the letter 'l' with 'g' in the sentence.
a gray and white cat sgeeping on top of a gaptop computer

Sentence: 'a bell tower with a bird nest perched on the top with a bird standing on it'. Replace the letter 'b' with 'l' in the sentence.

a lell tower with a lird nest perched on the top with a lird standing on it