extension relation counts:
 count |             name              |      base_cv_name       
-------+-------------------------------+-------------------------
    33 | absent_during                 | PSI-MOD
   786 | added_by                      | PSI-MOD
   303 | added_during                  | PSI-MOD
   718 | affected_by                   | PSI-MOD
    15 | coincident_with               | PSI-MOD
     4 | has_direct_input              | PSI-MOD
     6 | in_presence_of                | PSI-MOD
     2 | increased_during              | PSI-MOD
   338 | level_fluctuates_during       | PSI-MOD
     7 | occupancy                     | PSI-MOD
  8299 | present_during                | PSI-MOD
    65 | removed_by                    | PSI-MOD
    61 | removed_during                | PSI-MOD
    14 | required_for                  | PSI-MOD
   670 | during                        | PomGeneExProt
   608 | in_absence_of                 | PomGeneExProt
   623 | in_presence_of                | PomGeneExProt
  4087 | during                        | PomGeneExRNA
     4 | in_absence_of                 | PomGeneExRNA
   667 | in_presence_of                | PomGeneExRNA
    25 | occurs_in                     | PomGeneExRNA
   251 | happens_during                | biological_process
   278 | has_input                     | biological_process
   242 | has_regulation_target         | biological_process
    38 | occurs_at                     | biological_process
     7 | occurs_in                     | biological_process
    88 | part_of                       | biological_process
     1 | regulates_activity_of         | biological_process
   385 | coincident_with               | cellular_component
  1805 | exists_during                 | cellular_component
    17 | not_exists_during             | cellular_component
    37 | part_of                       | cellular_component
   546 | assayed_enzyme                | fission_yeast_phenotype
   230 | assayed_substrate             | fission_yeast_phenotype
 19477 | assayed_using                 | fission_yeast_phenotype
 10931 | has_penetrance                | fission_yeast_phenotype
 14113 | has_severity                  | fission_yeast_phenotype
    49 | is_bearer_of                  | fission_yeast_phenotype
     4 | occurs_at                     | fission_yeast_phenotype
 33816 | during                        | gene_ex
     4 | activated_by                  | molecular_function
    38 | directly_negatively_regulates | molecular_function
    28 | directly_positively_regulates | molecular_function
   513 | happens_during                | molecular_function
  2500 | has_direct_input              | molecular_function
    64 | has_input                     | molecular_function
   383 | has_regulation_target         | molecular_function
     1 | not_happens_during            | molecular_function
   134 | occurs_at                     | molecular_function
    67 | occurs_in                     | molecular_function
   814 | part_of                       | molecular_function
     2 | located_in                    | subunit_composition
(52 rows)


number of annotations using extensions by cv:
 count |      base_cv_name       
-------+-------------------------
     2 | subunit_composition
   796 | biological_process
  1284 | PomGeneExProt
  2074 | cellular_component
  3558 | molecular_function
  4736 | PomGeneExRNA
  9943 | PSI-MOD
 33816 | gene_ex
 40178 | fission_yeast_phenotype
(9 rows)