Purpose
Perform the DEFAULT single tier reduction. This reduces the entire set of nodes that matched a rule phrase.
Syntax
single()
Returns
Remarks
Example
# Since @POST is non-empty, you must explicitly specify reduction.
@POST
++G("nouns");
single();
# NEEDED,
or computer will not reduce to _noun.
@RULES
_noun <- computer @@
# In this case, @POST is empty, so single() occurs by default.
@POST
@RULES
_noun <- sheep @@