<p>A <strong>sentence</strong> is a list of <strong>words</strong> that are separated by a single space with no leading or trailing spaces.</p> <p>You are given an array of strings <code>sentences</code>, where each <code>sentences[i]</code> represents a single <strong>sentence</strong>.</p> <p>Return <em>the <strong>maximum number of words</strong> that appear in a single sentence</em>.</p> <p> </p> <p><strong class="example">Example 1:</strong></p> <pre> <strong>Input:</strong> sentences = ["alice and bob love leetcode", "i think so too", <u>"this is great thanks very much"</u>] <strong>Output:</strong> 6 <strong>Explanation:</strong> - The first sentence, "alice and bob love leetcode", has 5 words in total. - The second sentence, "i think so too", has 4 words in total. - The third sentence, "this is great thanks very much", has 6 words in total. Thus, the maximum number of words in a single sentence comes from the third sentence, which has 6 words. </pre> <p><strong class="example">Example 2:</strong></p> <pre> <strong>Input:</strong> sentences = ["please wait", <u>"continue to fight"</u>, <u>"continue to win"</u>] <strong>Output:</strong> 3 <strong>Explanation:</strong> It is possible that multiple sentences contain the same number of words. In this example, the second and third sentences (underlined) have the same number of words. </pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= sentences.length <= 100</code></li> <li><code>1 <= sentences[i].length <= 100</code></li> <li><code>sentences[i]</code> consists only of lowercase English letters and <code>' '</code> only.</li> <li><code>sentences[i]</code> does not have leading or trailing spaces.</li> <li>All the words in <code>sentences[i]</code> are separated by a single space.</li> </ul>