For trade routes between two provinces by sea, does a route count against the
maximum regardless of the initiating province, or can each initiate as many as
are desired? For example, Ilien can support three routes. Can it send one to
Ariya, one to Rjuvik, and one to Talinie, as well as receive one from Taeghas,
one from Zikala, and one from Dhoesone?