1. A method comprising: determining a strength of a correspondence between a search query and an element of a listing of an item on a network-based publication system, the determining of the strength of correspondence based on an analysis of a set of actions taken by a set of users submitting a same or similar search query; generating a set of annotations corresponding to the title of the listing of the item; propagating the set of annotations to an additional search query; and using the propagated set of annotations and the strength of the correspondence to enhance search results corresponding to the additional search query.