" A ship which sails under the flags of two or more States, using them according to convenience, may not claim any of the nationalities in question with respect to any other State, and may be assimilated to a ship without nationality."
DEFINITION OF TERMS IN THIS CLAUSE
β‘ a piece of fabric, usually hung from a pole, to indicate a nationality of a vessel.
β‘ to be registered to a specific country(the flag state) and use their flag while sailing.
β‘ a large boat that carries people or goods across the seas or oceans