Заменитель

lines = ["Look at the boy, he has a toy.",
         "Look at me.", "I am happy.",
         "Here is the kitchen where Mother cooks for me.",
         "What are little boys made of?",
         "What are little girls made of?",
         "Look at the girl, she has a doll."]
holders = {"h1": "|_ _ _ _, _ _ _ _.",
           "h2": "|_ _ _.", "h3": "|_ _ _ _ _ _?"}
for k, v in placeholder(*lines, **holders).items():
    print(k, "->", *v)

def placeholder(*args, **kwargs):
    result = {}
    
    def matches_pattern(sentence, pattern):
        sentence_words = sentence.split()
        pattern_words = pattern.split()
        
        if len(sentence_words) != len(pattern_words):
            return False
        
        for word, pattern_part in zip(sentence_words, pattern_words):
            word_end_punct = ""
            for i in range(len(word)-1, -1, -1):
                if word[i] in ",.!?;:'\"()":
                    word_end_punct = word[i] + word_end_punct
                else:
                    break
            
            clean_word = word[:len(word)-len(word_end_punct)]
            
            pattern_end_punct = ""
            for i in range(len(pattern_part)-1, -1, -1):
                if pattern_part[i] in ",.!?;:'\"()":
                    pattern_end_punct = pattern_part[i] + pattern_end_punct
                else:
                    break
            
            clean_pattern = pattern_part[:len(pattern_part)-len(pattern_end_punct)]
            
            if word_end_punct != pattern_end_punct:
                return False
            
            if clean_pattern == "|_":
                if not clean_word or not clean_word[0].isupper():
                    return False
            elif clean_pattern == "_":
                if not clean_word:
                    return False
            else:
                if clean_word != clean_pattern:
                    return False
        
        return True
    
    for sentence in args:
        for pattern_name, pattern in kwargs.items():
            if matches_pattern(sentence, pattern):
                if pattern not in result:
                    result[pattern] = []
                result[pattern].append(sentence)
                break
    
    for pattern in result:
        result[pattern].sort()
    
    return result
 
 
if __name__ == "__main__":
    lines = ["Look at the boy, he has a toy.",
             "Look at me.", "I am happy.",
             "Here is the kitchen where Mother cooks for me.",
             "What are little boys made of?",
             "What are little girls made of?",
             "Look at the girl, she has a doll."]
    
    holders = {
        "h1": "|_ _ _ _, _ _ _ _.",
        "h2": "|_ _ _.", 
        "h3": "|_ _ _ _ _ _?"
    }
    
    result = placeholder(*lines, **holders)
    
    for k, v in result.items():
        print(k, "->", *v)