instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a man on a skateboard jumping down a short flight of stairs'. Replace the letter 'o' with 'j' in the sentence.
answer:
a man jn a skatebjard jumping djwn a shjrt flight jf stairs


question:
Sentence: 'a blue and white train is coming down some tracks'. Replace the letter 'b' with 'u' in the sentence.
answer:
a ulue and white train is coming down some tracks


question:
Sentence: 'group playing frisbee with runners in grassy field'. Replace the letter 'l' with 'q' in the sentence.
answer:

group pqaying frisbee with runners in grassy fieqd