Here are examples of the four types of query matching semantics. A query will match any component whose value for the corresponding QD field matches any one of the strings in the list, but the names must match exactly except for case. Not any value will result in matches, naturally, and the response may well be constrained by a value code list defined in the Dictionary. This is intended to be a subset of the common Web search engine syntax. A match occurs if one or more substring appears anywhere in the data to be searched.
All matches are case insensitive.
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