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

Input: Consider Input: Sentence: 'a group of sheep is standing in a grassy field'. Replace the letter 'g' with 'p' in the sentence.

Output: a proup of sheep is standinp in a prassy field


Input: Consider Input: Sentence: 'a white bathroom with a stand alone sink and a shower curtain'. Replace the letter 'a' with 'm' in the sentence.

Output: m white bmthroom with m stmnd mlone sink mnd m shower curtmin


Input: Consider Input: Sentence: 'a man that is throwing a frizbee in the woods'. Replace the letter 'g' with 'u' in the sentence.


Output: a man that is throwinu a frizbee in the woods