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

Q: Sentence: 'a motorcycle sitting on the side of the road by grass'. Replace the letter 'r' with 't' in the sentence.

A: a mototcycle sitting on the side of the toad by gtass
****
Q: Sentence: 'a man wearing a hat has his cell phone to his ear'. Replace the letter 'g' with 'w' in the sentence.

A: a man wearinw a hat has his cell phone to his ear
****
Q: Sentence: 'a small elephant digging in the dirt behind a fence'. Replace the letter 's' with 'm' in the sentence.

A:
a mmall elephant digging in the dirt behind a fence
****