An island grammar is a grammar that only describes a small chunk of the underlying language. It is used in language parsing in situations where there is no requirement for checking the entire syntax of a provided text. Island grammars can be extended with the use of a bridge grammar.
Island grammar is not larger than bridge grammar.
( z1 have-degree :polarity - :ARG1 ( z2 grammar :mod ( z3 island ) ) :ARG2 ( z4 large ) :ARG3 ( z5 more ) :ARG4 ( z6 grammar :mod ( z7 bridge ) ) )