The search engine will examine the query, extract nouns and noun phrases and construct a query for the user.
For convenience of discussion, assume that query predicates are such that the lower boundaries of these fall on partition boundaries.
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.
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.
There's a chance the popup message isn't a legit system query at all, but rather works like a cleverly disguised ad that interprets any click as approval to install something malicious on your system.