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

Sentence: 'a woman on a cell phone on  city street'. Replace the letter 'e' with 'a' in the sentence.
a woman on a call phona on  city straat

Sentence: 'a ski slope consisting of several people wearing skis and snowboards'. Replace the letter 'e' with 's' in the sentence.
a ski slops consisting of ssvsral psopls wsaring skis and snowboards

Sentence: 'the young man jumps on a ramp with his skateboard'. Replace the letter 'o' with 'a' in the sentence.

the yaung man jumps an a ramp with his skatebaard