instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a person under an open umbrella in the sand'. Replace the letter 'd' with 'h' in the sentence.
answer:
a person unher an open umbrella in the sanh

question:
Sentence: 'top view of a bathroom including tub, sink and toilet'. Replace the letter 'f' with 'o' in the sentence.
answer:
top view oo a bathroom including tub, sink and toilet

question:
Sentence: 'young child is eating a powdered doughnut at the kitchen table'. Replace the letter 'd' with 'h' in the sentence.
answer:
young chilh is eating a powhereh houghnut at the kitchen table