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

Sentence: 'a close shot of a stop sign near a building'. Replace the letter 'b' with 'u' in the sentence.
a close shot of a stop sign near a uuilding

Sentence: 'a baseball player holding a baseball bat during a baseball game'. Replace the letter 'a' with 'u' in the sentence.
u busebull pluyer holding u busebull but during u busebull gume

Sentence: 'a vintage scene shows passengers boarding a prop plane in a field'. Replace the letter 'i' with 'j' in the sentence.

a vjntage scene shows passengers boardjng a prop plane jn a fjeld