在文本中查找以下单词的出现次数：“man”、“woman”、“child”


文本：“The man who is seen as a hero is not always a hero. The woman who is seen as a villain is not always a villain. A child who is seen as innocent is not always innocent.”
单词“man”出现了 2 次，单词“woman”出现了 2 次，单词“child”出现了 2 次。