For convenience of discussion, assume that query predicates are such that the lower boundaries of these fall on partition boundaries.
The search engine will examine the query, extract nouns and noun phrases and construct a query for the user.
For example, a novice freelance writer who gets the majority of her assignments through bidding Web sites may also be busy sending out query letters to try to break into higher-paying magazine markets.
The purpose of a query letter is to allow an editor to quickly gauge your writing style, your sense of professionalism, and whether or not the idea you're proposing is suitable for the publication.
In a quaint bit of Twentieth Century sensibility, she apparently took his surname when they married, so that fun could be had with the two of them both answering to the query "Captain Picard?"