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

Sentence: 'a yellow street sign sitting on the side of a road'. Replace the letter 'a' with 'd' in the sentence.
d yellow street sign sitting on the side of d rodd

Sentence: 'this refrigerator is covered in stickers on it'. Replace the letter 't' with 'h' in the sentence.
hhis refrigerahor is covered in shickers on ih

Sentence: 'people walking around where public buses are parked'. Replace the letter 'o' with 'j' in the sentence.

pejple walking arjund where public buses are parked