Data on the use of optional ergative case marking in Tujia, an endangered language of southwest China

. 2019 Jun 26;26:104019. doi: 10.1016/j.dib.2019.104019

B.	ɲa³⁵ a²¹ ɲie⁵³	（ko³⁵）	ts^he³⁵	xa²¹ lu²¹.
	my mother	KO	vegetable	pick PERF.DIR
	‘My mother has gone to pick vegetables.’