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

Sentence: 'a gate with a stop sign blocking the road'. Replace the letter 'h' with 'y' in the sentence.
a gate wity a stop sign blocking tye road

Sentence: 'the person rides down the path atop the pink skateboard'. Replace the letter 'e' with 'c' in the sentence.
thc pcrson ridcs down thc path atop thc pink skatcboard

Sentence: 'a group of people on skis. standing on the snow covered ground together'. Replace the letter 'n' with 'w' in the sentence.

a group of people ow skis. stawdiwg ow the swow covered grouwd together