I guess you're thinking about the disjunction in terms of a captured set of regexp alternatives where you can figure out which alternative matched while accepting any of the alternatives... Junctions don't really work that way; as I suggested, have a look at the Perl6::Junction::Any code. Also, to understand the concept more generally, take a look at Quantum::Superpositions.

Thanks for your insightful reply! It looks I misunderstood usage of disjunction. Thanks! Researching Quantum seems a good way to understand junction in general.