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

Ex Input:
Sentence: 'a person is riding a skateboard in a skateboard park'. Replace the letter 'a' with 'o' in the sentence.

Ex Output:
o person is riding o skoteboord in o skoteboord pork


Ex Input:
Sentence: 'a baseball player holding a baseball bat during a baseball game'. Replace the letter 'a' with 'u' in the sentence.

Ex Output:
u busebull pluyer holding u busebull but during u busebull gume


Ex Input:
Sentence: 'a small plastic dish with food in it'. Replace the letter 'p' with 'g' in the sentence.

Ex Output:

a small glastic dish with food in it