Yep, that’s one we didn’t get to expand on as much as we wanted.
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Thanks for confirming this, Celia.
I figured it out quite intuitively, coming from a culture that has specific terms for older relative (Ate, Kuya, Manong/Manang), and younger relative (Ale, Adeng, Bunso), regardless of whether they're siblings or cousins.
But I appreciate getting a definitive answer.