Which is a bird or fish: Black-necked grebe, Black tetra
Black tetra is a fish, Black-necked grebe is a bird
<START_INST>Which is a bird or fish: Black-necked grebe, Black tetra<END_INST><START_CTX><END_CTX><START_A>Black tetra is a fish, Black-necked grebe is a bird<END_A>