+ <para>Queries using simple terms.
+ <screen>
+ dylan
+ "bob dylan"
+ </screen>
+ </para>
+ <para>Boolean operators.
+ <screen>
+ @or "dylan" "zimmerman"
+ @and @or dylan zimmerman when
+ @and when @or dylan zimmerman
+ </screen>
+ </para>
+ <para>
+ Reference to result sets.
+ <screen>
+ @set Result-1
+ @and @set seta setb
+ </screen>
+ </para>
+ <para>
+ Attributes for terms.
+ <screen>
+ @attr 1=4 computer
+ @attr 1=4 @attr 4=1 "self portrait"
+ @attr exp1 @attr 1=1 CategoryList
+ @attr gils 1=2008 Copenhagen
+ @attr 1=/book/title computer
+ </screen>
+ </para>
+ <para>
+ Proximity.
+ <screen>
+ @prox 0 3 1 2 k 2 dylan zimmerman
+ </screen>
+ </para>
+ <para>
+ Specifying term type.
+ <screen>
+ @term string "a UTF-8 string, maybe?"
+ </screen>
+ </para>
+ <para>Mixed queries
+ <screen>
+ @or @and bob dylan @set Result-1
+
+ @attr 4=1 @and @attr 1=1 "bob dylan" @attr 1=4 "slow train coming"
+
+ @and @attr 2=4 @attr gils 1=2038 -114 @attr 2=2 @attr gils 1=2039 -109
+ </screen>
+ </para>
+ </example>