<p>Given a <code>wordlist</code>, we want to implement a spellchecker that converts a query word into a correct word.</p>

<p>For a given <code>query</code> word, the spell checker handles two categories of spelling mistakes:</p>

<ul>
	<li>Capitalization: If the query matches a word in the wordlist (<strong>case-insensitive</strong>), then the query word is returned with the same case as the case in the wordlist.

	<ul>
		<li>Example: <code>wordlist = [&quot;yellow&quot;]</code>, <code>query = &quot;YellOw&quot;</code>: <code>correct = &quot;yellow&quot;</code></li>
		<li>Example: <code>wordlist = [&quot;Yellow&quot;]</code>, <code>query = &quot;yellow&quot;</code>: <code>correct = &quot;Yellow&quot;</code></li>
		<li>Example: <code>wordlist = [&quot;yellow&quot;]</code>, <code>query = &quot;yellow&quot;</code>: <code>correct = &quot;yellow&quot;</code></li>
	</ul>
	</li>
	<li>Vowel Errors: If after replacing the vowels <code>(&#39;a&#39;, &#39;e&#39;, &#39;i&#39;, &#39;o&#39;, &#39;u&#39;)</code> of the query word with any vowel individually, it matches a word in the wordlist (<strong>case-insensitive</strong>), then the query word is returned with the same case as the match in the wordlist.
	<ul>
		<li>Example: <code>wordlist = [&quot;YellOw&quot;]</code>, <code>query = &quot;yollow&quot;</code>: <code>correct = &quot;YellOw&quot;</code></li>
		<li>Example: <code>wordlist = [&quot;YellOw&quot;]</code>, <code>query = &quot;yeellow&quot;</code>: <code>correct = &quot;&quot;</code> (no match)</li>
		<li>Example: <code>wordlist = [&quot;YellOw&quot;]</code>, <code>query = &quot;yllw&quot;</code>: <code>correct = &quot;&quot;</code> (no match)</li>
	</ul>
	</li>
</ul>

<p>In addition, the spell checker operates under the following precedence rules:</p>

<ul>
	<li>When the query exactly matches a word in the wordlist (<strong>case-sensitive</strong>), you should return the same word back.</li>
	<li>When the query matches a word up to capitlization, you should return the first such match in the wordlist.</li>
	<li>When the query matches a word up to vowel errors, you should return the first such match in the wordlist.</li>
	<li>If the query has no matches in the wordlist, you should return the empty string.</li>
</ul>

<p>Given some <code>queries</code>, return a list of words <code>answer</code>, where <code>answer[i]</code> is the correct word for <code>query = queries[i]</code>.</p>

<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>
<pre><strong>Input:</strong> wordlist = ["KiTe","kite","hare","Hare"], queries = ["kite","Kite","KiTe","Hare","HARE","Hear","hear","keti","keet","keto"]
<strong>Output:</strong> ["kite","KiTe","KiTe","Hare","hare","","","KiTe","","KiTe"]
</pre><p><strong class="example">Example 2:</strong></p>
<pre><strong>Input:</strong> wordlist = ["yellow"], queries = ["YellOw"]
<strong>Output:</strong> ["yellow"]
</pre>
<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>

<ul>
	<li><code>1 &lt;= wordlist.length, queries.length &lt;= 5000</code></li>
	<li><code>1 &lt;= wordlist[i].length, queries[i].length &lt;= 7</code></li>
	<li><code>wordlist[i]</code> and <code>queries[i]</code> consist only of only English letters.</li>
</ul>

class Solution:
    def spellchecker(self, wordlist: List[str], queries: List[str]) -> List[str]:
        # check capital
        # for every q, check if there is same (lowered case) for every wordlist
        # q*w
        # check vowel error
        # worst case -> every letter is vowel
        # for every q, change each vowel with 5 other possibilities  -> same with check capital
        # 5*w[i]*q*w => max 5*7 => 
        
        # don't match the vowel?
        # spell, speell
        # sp*ll, sp**ll
        # allow *
        
        # edge case: hare hArE, hare
        # h*r*, h*r*, h*r*
        
        # check until capital
        # check *
        
        # q*w to q -> use hashmap
        # set wordlist, 
        # hashmap of a word (in lower case) and its first occurence
        # kite -> KiTe
        
        def make_word_start(word_lowered):
            word_star = ""
            for c in word_lowered:
                if c in ["a","i","u","e","o"]:
                    word_star += "*"
                else:
                    word_star += c
            return word_star

        wordset_original = set()
        wordset = set()
        wordset_star = set()
        firstword = {}
        firstword_star = {}
        for word in wordlist:
            word_lowered = word.lower()
            word_star = make_word_start(word_lowered)
            
            wordset_original.add(word)
            wordset.add(word_lowered)
            wordset_star.add(word_star)
            
            
            if word_lowered not in firstword.keys():
                firstword[word_lowered] = word
                
            if word_star not in firstword_star.keys():
                firstword_star[word_star] = word
                
        result = []
        for word in queries:
            word_lowered = word.lower()
            word_star = make_word_start(word_lowered)
            
            if word in wordset_original:
                result.append(word)
            elif word_lowered in wordset:
                result.append(firstword[word_lowered])
            elif word_star in wordset_star:
                result.append(firstword_star[word_star])
            else:
                result.append("")
        
        return result
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