1. logic_type(X1) =. running_head :- height(X1) in [6 .. 9],y_pos_centre(X1) in [18 .. 35],width(X1) in [77 .. 544].

2. logic_type(X1) =. figure :- height(X1) in [90 .. 313],width(X1) in [9 .. 255],at_page(X1) =. intermediate.

3. logic_type(X1) =. page_number :- y_pos_centre(X1) in [19 .. 29],width(X1) in [2 .. 8].

4. logic_type(X1) =. page_number :- width(X1) in [4 .. 8],y_pos_centre(X1) in [22 .. 40].

5. logic_type(X1) =. figure :- type_of(X1) =. image,at_page(X1) =. intermediate.

6. logic_type(X1) =. figure :- type_of(X1) =. graphic.

7. logic_type(X1) =. abstract :- at_page(X1) =. first,width(X1) in [487 .. 488].

8. logic_type(X1) =. affiliation :- at_page(X1) =. first,y_pos_centre(X1) in [720 .. 745].

9. logic_type(X1) =. author :- at_page(X1) =. first,y_pos_centre(X1) in [128 .. 158].

10. logic_type(X1) =. biography :- at_page(X1) =. last,height(X1) in [65 .. 234].

11. logic_type(X1) =. caption :- alignment(X2,X1) =. only_middle_col,logic_type(X2) =. figure,type_of(X1) =. text,height(X1) in [18 .. 75].

12. logic_type(X1) =. index_term :- height(X1) in [8 .. 8],y_pos_centre(X1) in [263 .. 295].

13. logic_type(X1) =. title :- at_page(X1) =. first,height(X1) in [18 .. 53].

14. logic_type(X1) =. references :- width(X1) in [268 .. 268],height(X1) in [332 .. 355].

15. logic_type(X1) =. running_head :- alignment(X2,X1) =. only_upper_row,logic_type(X2) =. page_number.

16. logic_type(X1) =. references :- height(X1) in [339 .. 355].

17. logic_type(X1) =. caption :- height(X1) in [9 .. 40],on_top(X2,X1) =. true,logic_type(X2) =. figure,width(X2) in [5 .. 364].

18. logic_type(X1) =. caption :- height(X1) in [9 .. 9],y_pos_centre(X1) in [417 .. 605].

19. logic_type(X1) =. caption :- on_top(X2,X1) =. true,alignment(X2,X3) =. only_lower_row,logic_type(X2) =. figure.

20. logic_type(X1) =. caption :- width(X1) in [419 .. 546],on_top(X1,X2) =. true,logic_type(X2) =. figure.