On how to write rules in Constraint Grammar (CG-3) - VISL
On how to write rules in Constraint Grammar (CG-3) - VISL
On how to write rules in Constraint Grammar (CG-3) - VISL
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Labelled arcs for other purposes<br />
➢ <strong>in</strong>stead of the default dependency arcs, other relations<br />
can be def<strong>in</strong>ed:<br />
➢ SETRELATION (identity) TARGET () TO (*-1 N) ;<br />
(Set a ”identity” rela<strong>to</strong>n from a relative pronoun <strong>to</strong> a noun occurr<strong>in</strong>g<br />
earlier <strong>in</strong> the sentence.)<br />
➢ results <strong>in</strong>: ID:n R:identity:m<br />
n: arc base (here pronoun) word number<br />
identity: relation name <strong>in</strong>troduced by R<br />
m: arc head (here the referent noun) word number<br />
➢ REMRELATION – removes one direction of a relation<br />
REMRELATION (name) targetset () TO ()<br />
➢ SETRELATIONS and REMRELATIONS simultaneously handle 2<br />
names for the two directions of a relation
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