Table 12.

Confusion matrix over structured abstracts.

Class		Prediction
				B	I	O	P	S	Ot
	B	561	4	43	8	2	51
G	I	27	41	48	60	5	132
o	O	6	1	2165	4	0	64
l	P	24	17	33	198	10	87
d	S	21	5	6	35	49	33
	Ot	63	24	155	30	8	754

B: Background, I: Intervention, O: Outcome, P: Population, S: Study Design, and Ot: Other.