looks
What an item looks like: each word's score for it minus the word's median over the library (words that match everything a little don't win), then its best words: the top one above the library's bar and any close behind, a word only once ("tennis" and "tennis match" share one, as do near-synonyms), at most max. Ranking within the item keeps what a library is full of nameable: tennis videos in a tennis-heavy library still get "tennis".