$ echo "ᤛᤡᤖᤧ ᤂᤖᤧᤴ" | apertium -d . lif-disam
"<ᤛᤡᤖᤧ>"
	"ᤛᤡ" n sg erg
	"ᤛᤡ" n sg gen​
	"ᤛᤡ" n sg voc
"<ᤂᤖᤧᤴ>"
	"ᤂᤖᤧᤴ" n sg
	"ᤂᤖᤧᤴ" n ser3sg
;	"ᤂᤖᤧᤴ" n attr REMOVE:300
"<.>"
	"." cm

LIST NOUN = n np;
LIST NGEN = (n gen) (np gen) (n sg gen) ;

SELECT NGEN IF 
    (0 NGEN)
    (1 NOUN) ;

SELECT (gen) IF
    (0 (gen) + NOUN)
    (0 (erg))
    (1 NOUN) ;