TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a group of people riding on top of snow boarding equipment'. Replace the letter 'e' with 'x' in the sentence.

SOLUTION: a group of pxoplx riding on top of snow boarding xquipmxnt

PROBLEM: Sentence: 'a toddler on skis being held up by a grownup'. Replace the letter 'o' with 'k' in the sentence.

SOLUTION: a tkddler kn skis being held up by a grkwnup

PROBLEM: Sentence: 'a person riding down the side of a snow covered slope'. Replace the letter 'n' with 'h' in the sentence.

SOLUTION:
a persoh ridihg dowh the side of a show covered slope