\tquery = search-element bool-operator search-element ...\n\n
There are three boolean operators (| means or):\n
\tbool-operator = and | or | not\n\n
A search-element has three forms. The first and simplest is
when it consists of one or more search-terms as in:\n
\tquery = search-element bool-operator search-element ...\n\n
There are three boolean operators (| means or):\n
\tbool-operator = and | or | not\n\n
A search-element has three forms. The first and simplest is
when it consists of one or more search-terms as in:\n