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

Sentence: 'a teddy bear playing a drum and a teddy bear playing a guitar'. Replace the letter 'd' with 'm' in the sentence.
a temmy bear playing a mrum anm a temmy bear playing a guitar

Sentence: 'a woman in a floral swimsuit holds a pink umbrella'. Replace the letter 't' with 'l' in the sentence.
a woman in a floral swimsuil holds a pink umbrella

Sentence: 'a train is sitting on the railroad track'. Replace the letter 'g' with 'x' in the sentence.

a train is sittinx on the railroad track