Table 3.

Number of terms in the test corpus per type assignment method and per resource.

	MBTO	EnvO	DTa2
% of corpus terms	16%	9%	10%
Exact match	147	46	72
Main head of term	133	114	103
Subterm head	5	4	3
Ambiguous head	26	21	17
Total head matching	164 (52%)	139 (91%)	123 (63%)
Total	311	185	195