In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'vita mix blender with something in it already blended'. Replace the letter 'b' with 'a' in the sentence.

Answer: vita mix alender with something in it already alended


Question: Sentence: 'a young boy in a shopping cart looking at tooth brushes'. Replace the letter 'o' with 'r' in the sentence.

Answer: a yrung bry in a shrpping cart lrrking at trrth brushes


Question: Sentence: 'a big building with a clock tower on it'. Replace the letter 'r' with 'b' in the sentence.

Answer:
a big building with a clock toweb on it