is QCR meant to support union/intersection of classes?

I see that the current specification of the OWL 1.1 API appears to only
support named classes in a QCR.

When using P4 build 53 (OWL 1.1 API)

hasSingleBondWith exactly 1 (Alkyl or Aryl or HydrogenAtom)

is saved as

hasSingleBondWith exactly 1


Is this a bug in the OWL 1.1 spec (owl11:onClass rdf:resource="#myClass"),
or do i need to provide an arbitrary class to equivalent to the union or
intersection of the classes?

Thanks,

-=Michel=-