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

Ex Input:
Sentence: 'there is a purse on the floor with its contents spilled out'. Replace the letter 'd' with 'v' in the sentence.

Ex Output:
there is a purse on the floor with its contents spillev out


Ex Input:
Sentence: 'a young boy riding his skateboard down the sidewalk'. Replace the letter 'd' with 'p' in the sentence.

Ex Output:
a young boy riping his skateboarp pown the sipewalk


Ex Input:
Sentence: 'a black and white photo of people walking underneath a clock'. Replace the letter 'o' with 'j' in the sentence.

Ex Output:

a black and white phjtj jf pejple walking underneath a cljck