instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'vita mix blender with something in it already blended'. Replace the letter 'b' with 'a' in the sentence.
answer:
vita mix alender with something in it already alended


question:
Sentence: 'a yellow fire truck parked in a parking lot'. Replace the letter 'a' with 'y' in the sentence.
answer:
y yellow fire truck pyrked in y pyrking lot


question:
Sentence: 'a bear is walking through some plants and brush'. Replace the letter 'p' with 'h' in the sentence.
answer:

a bear is walking through some hlants and brush