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

[EX Q]: Sentence: 'some brown black and white horses clouds and rocks'. Replace the letter 'a' with 'n' in the sentence.
[EX A]: some brown blnck nnd white horses clouds nnd rocks

[EX Q]: Sentence: 'a toddler on skis being held up by a grownup'. Replace the letter 'o' with 'k' in the sentence.
[EX A]: a tkddler kn skis being held up by a grkwnup

[EX Q]: Sentence: 'a large train is pulled into a tunnel of brick'. Replace the letter 'i' with 'v' in the sentence.
[EX A]:
a large travn vs pulled vnto a tunnel of brvck