instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a red train moves over snowy rail road tracks'. Replace the letter 'v' with 'w' in the sentence.
answer:
a red train mowes ower snowy rail road tracks


question:
Sentence: 'a baseball player running to third base from second'. Replace the letter 'a' with 'u' in the sentence.
answer:
u busebull pluyer running to third buse from second


question:
Sentence: 'a person sits at a table in a kitchen'. Replace the letter 'a' with 'l' in the sentence.
answer:

l person sits lt l tlble in l kitchen