10. The method of claim 9 , wherein the searching the database based at least in part on the first query annotation comprises: evaluating a result of searching the database based at least in part on the first query annotation; and in response to determining that the result satisfies at least one condition, searching the database based at least in part on the second query annotation.
9. The method of claim 1 , wherein: the determining the at least one query annotation related to the query comprises determining a plurality of query annotations related to the query, the plurality of query annotations comprising the first query annotation and a second query annotation, the first query annotation and the second query annotation relating to a portion of the query having multiple interpretations, the first query annotation relating to a first interpretation of the portion of the query and the second query annotation relating to a second interpretation of the portion of the query; the searching the database based at least in part on the first query annotation comprises: evaluating the first query annotation and the second query annotation based at least in part on a ranking of interpretation types for portions of queries having multiple interpretations; and searching the database based at least in part on the first query annotation in response to determining that an interpretation type of the first query annotation is ranked higher in the ranking that an interpretation type of the second query annotation.