Rule:SC1

// NP<subclass> be  [CN] NP<superclass> 
// An orphan drug is a type of drug.

(
({NounChunk}):subclass
{Lookup.minorType == be}
({Token.category == DT})?
{Lookup.majorType == CN}
({NounChunk}):superclass
)
-->

:subclass.Subclass = {rule=SC1},
:superclass.Superclass = {rule=SC1}