In this task, you need to replace a letter in the sentence with another given letter.

Input: Consider Input: Sentence: 'a man in black shirt laying on bed with a teddy bear'. Replace the letter 'd' with 'b' in the sentence.

Output: a man in black shirt laying on beb with a tebby bear

Input: Consider Input: Sentence: 'a clock mounted above a door entrance with windows'. Replace the letter 's' with 'l' in the sentence.

Output: a clock mounted above a door entrance with windowl

Input: Consider Input: Sentence: 'an older man is holding luggage outside a transport center'. Replace the letter 's' with 'v' in the sentence.
Output: an older man iv holding luggage outvide a tranvport center