instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a skater looks ahead as he rides down a ramp'. Replace the letter 'n' with 'm' in the sentence.
answer:
a skater looks ahead as he rides dowm a ramp


question:
Sentence: 'a boy riding his skate board on an obstacle course'. Replace the letter 'e' with 'b' in the sentence.
answer:
a boy riding his skatb board on an obstaclb coursb


question:
Sentence: 'woman in front with black bag at her side. second woman entering behind'. Replace the letter 'a' with 'p' in the sentence.
answer:

wompn in front with blpck bpg pt her side. second wompn entering behind