. . "Northern Luzon languages" . . . . . . . "North Luzon" . "Northern" . . . . . . . . . . "northern Luzon subgroup" . . . "Cordilleran" . . . . . . . "Northeastern Luzon Agta languages" . . . . . "Northern Luzon languages" . . . . . . . "Northern Luzon language" . . "Northern Luzon subgroup" . . . . "Northern Luzon languages#Reconstruction" . . . . . "Northern Luzon subfamily" . . . . . . . "Northern Luzon" . . "Northern_Luzon_languages#Reconstruction" . . .