instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a man walking a horse on a dirt track'. Replace the letter 't' with 's' in the sentence.
answer:
a man walking a horse on a dirs srack


question:
Sentence: 'a study features the color green and old-fashioned furniture'. Replace the letter 'e' with 'd' in the sentence.
answer:
a study fdaturds thd color grddn and old-fashiondd furniturd


question:
Sentence: 'three players grasping for the disc in a frisbee competition'. Replace the letter 'e' with 'w' in the sentence.
answer:

thrww playwrs grasping for thw disc in a frisbww compwtition