Check If a Word Occurs As a Prefix of Any Word in a Sentence

class Solution:
    def isPrefixOfWord(self, sentence: str, searchWord: str) -> int:
        s = sentence.split()
        for i in s:
            if searchWord in i:
                count = 0
                for j in range(len(searchWord)):
                    if searchWord[j] == i[j]:
                        count += 1
                    else:
                        break
                if len(searchWord) == count:
                    return s.index(i)+1
        return -1