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

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

[EX Q]: Sentence: 'a man on a horse in riding gear looking onward'. Replace the letter 'o' with 'h' in the sentence.
[EX A]: a man hn a hhrse in riding gear lhhking hnward

[EX Q]: Sentence: 'a man looks surprised  while catching a frisbee'. Replace the letter 'u' with 'c' in the sentence.
[EX A]:
a man looks scrprised  while catching a frisbee