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1.
A couple consisting of one Black person and one Asian person. Also a couple consisting of two Blasians. All are said to be on the Blasian Train. Possibly a couple consisting of one Blasian and one Black person or one Blasian and one Asian person.
Trent: "Come on man! Get on the Blasian Train!"
Saba: "Are you on the Blasian Train yet, Janelle?"
Reshna: "I love being on the Blasian Train!"