Question-pattern detection
The analyzer takes the first sentence or heading, lowercases it, and matches it against question templates - 'how do i', 'what is', 'why does', 'can you', 'where can', 'when should' - plus bare interrogatives. It counts the words in the question and checks whether the rest of the text answers within the first sentence or two. Question-shaped phrasing is the signal that content uses the register people actually speak.