extension relation counts:
 count |             name              |      base_cv_name       
-------+-------------------------------+-------------------------
     2 | directly_negatively_regulates | biological_process
     2 | directly_positively_regulates | biological_process
   189 | happens_during                | biological_process
   321 | has_input                     | biological_process
   289 | has_regulation_target         | biological_process
    34 | occurs_at                     | biological_process
     9 | occurs_in                     | biological_process
    87 | part_of                       | biological_process
    15 | regulates_activity_of         | biological_process
   243 | coincident_with               | cellular_component
  1553 | exists_during                 | cellular_component
    16 | not_exists_during             | cellular_component
    11 | part_of                       | cellular_component
   398 | assayed_enzyme                | fission_yeast_phenotype
   196 | assayed_substrate             | fission_yeast_phenotype
 13938 | assayed_using                 | fission_yeast_phenotype
  9721 | has_expressivity              | fission_yeast_phenotype
  9569 | has_penetrance                | fission_yeast_phenotype
    49 | is_bearer_of                  | fission_yeast_phenotype
     5 | occurs_in                     | fission_yeast_phenotype
 37066 | during                        | gene_ex
     4 | in_absence_of                 | gene_ex
   644 | in_presence_of                | gene_ex
    29 | occurs_in                     | gene_ex
    64 | activated_by                  | molecular_function
    27 | directly_negatively_regulates | molecular_function
    10 | directly_positively_regulates | molecular_function
   398 | happens_during                | molecular_function
  2370 | has_direct_input              | molecular_function
   186 | has_regulation_target         | molecular_function
    65 | inhibited_by                  | molecular_function
     1 | not_happens_during            | molecular_function
   138 | occurs_at                     | molecular_function
    19 | occurs_in                     | molecular_function
   501 | part_of                       | molecular_function
    32 | absent_during                 | PSI-MOD
   676 | added_by                      | PSI-MOD
   224 | 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
     3 | occupancy                     | PSI-MOD
  7105 | present_during                | PSI-MOD
    54 | removed_by                    | PSI-MOD
    47 | removed_during                | PSI-MOD
     4 | required_for                  | PSI-MOD
     2 | located_in                    | subunit_composition
(48 rows)


number of annotations using extensions by cv:
 count |      base_cv_name       
-------+-------------------------
     2 | subunit_composition
   840 | biological_process
  1720 | cellular_component
  3087 | molecular_function
  8069 | PSI-MOD
 30362 | fission_yeast_phenotype
 37676 | gene_ex
(7 rows)