extension relation counts:
 count |             name              |      base_cv_name       
-------+-------------------------------+-------------------------
     2 | directly_negatively_regulates | biological_process
     2 | directly_positively_regulates | biological_process
   210 | happens_during                | biological_process
   323 | has_input                     | biological_process
   319 | has_regulation_target         | biological_process
    38 | occurs_at                     | biological_process
     6 | occurs_in                     | biological_process
    80 | part_of                       | biological_process
    18 | regulates_activity_of         | biological_process
   257 | coincident_with               | cellular_component
  1618 | exists_during                 | cellular_component
    17 | not_exists_during             | cellular_component
    14 | part_of                       | cellular_component
   466 | assayed_enzyme                | fission_yeast_phenotype
   202 | assayed_substrate             | fission_yeast_phenotype
 14979 | assayed_using                 | fission_yeast_phenotype
 10752 | has_expressivity              | fission_yeast_phenotype
 10008 | has_penetrance                | fission_yeast_phenotype
    49 | is_bearer_of                  | fission_yeast_phenotype
     4 | occurs_at                     | fission_yeast_phenotype
     5 | occurs_in                     | fission_yeast_phenotype
 37109 | during                        | gene_ex
     4 | in_absence_of                 | gene_ex
   647 | in_presence_of                | gene_ex
    29 | occurs_in                     | gene_ex
    59 | activated_by                  | molecular_function
    36 | directly_negatively_regulates | molecular_function
    28 | directly_positively_regulates | molecular_function
   434 | happens_during                | molecular_function
  2400 | has_direct_input              | molecular_function
   201 | has_regulation_target         | molecular_function
    65 | inhibited_by                  | molecular_function
     1 | not_happens_during            | molecular_function
   155 | occurs_at                     | molecular_function
    30 | occurs_in                     | molecular_function
   646 | part_of                       | molecular_function
    33 | absent_during                 | PSI-MOD
   695 | added_by                      | PSI-MOD
   233 | added_during                  | PSI-MOD
     8 | coincident_with               | PSI-MOD
     4 | has_direct_input              | PSI-MOD
     6 | in_presence_of                | PSI-MOD
   334 | level_fluctuates_during       | PSI-MOD
     4 | occupancy                     | PSI-MOD
  8269 | present_during                | PSI-MOD
    54 | removed_by                    | PSI-MOD
    47 | removed_during                | PSI-MOD
     6 | required_for                  | PSI-MOD
     2 | located_in                    | subunit_composition
(49 rows)


number of annotations using extensions by cv:
 count |      base_cv_name       
-------+-------------------------
     2 | subunit_composition
   882 | biological_process
  1791 | cellular_component
  3253 | molecular_function
  9067 | PSI-MOD
 32585 | fission_yeast_phenotype
 37719 | gene_ex
(7 rows)