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

Ex Input:
Sentence: 'a woman is on skis riding down the snow covered sloped'. Replace the letter 'd' with 'q' in the sentence.

Ex Output:
a woman is on skis riqing qown the snow covereq slopeq


Ex Input:
Sentence: 'a giraffe sticks its tongue out in the air'. Replace the letter 'e' with 'l' in the sentence.

Ex Output:
a giraffl sticks its tongul out in thl air


Ex Input:
Sentence: 'a group of three tie racks hanging from a wall'. Replace the letter 'u' with 'y' in the sentence.

Ex Output:

a groyp of three tie racks hanging from a wall