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

Sentence: 'a giraffe sticks its tongue out in the air'. Replace the letter 'e' with 'l' in the sentence.
a giraffl sticks its tongul out in thl air

Sentence: 'a man on a surfboard riding on the waters waves'. Replace the letter 's' with 'k' in the sentence.
a man on a kurfboard riding on the waterk wavek

Sentence: 'giraffes in a field with trees and tall grass'. Replace the letter 'e' with 'a' in the sentence.
giraffas in a fiald with traas and tall grass