Compound operators

Within an expression, parentheses can be used to group clauses together, and parentheses have the highest order of precedence.

SKIP and WHILE operators are next, and have the same precedence.

The AND operator is next.

The OR operator is next.

Examples
A filter string of the form: “Filter1 AND Filter2 OR Filter3” will be evaluated as: “(Filter1 AND Filter2) OR Filter3”
   A filter string of the form: “Filter1 AND SKIP Filter2 OR Filter3” will be evaluated as: “(Filter1 AND (SKIP Filter2)) OR Filter3”