extension relation counts:
 count |             name              |      base_cv_name       
-------+-------------------------------+-------------------------
    33 | absent_during                 | PSI-MOD
   813 | added_by                      | PSI-MOD
   310 | 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
     6 | increased_during              | PSI-MOD
   338 | level_fluctuates_during       | PSI-MOD
     7 | occupancy                     | PSI-MOD
  8313 | present_during                | PSI-MOD
    71 | removed_by                    | PSI-MOD
    64 | removed_during                | PSI-MOD
    16 | required_for                  | PSI-MOD
   667 | during                        | PomGeneExProt
   608 | in_absence_of                 | PomGeneExProt
   628 | in_presence_of                | PomGeneExProt
   734 | during                        | PomGeneExRD
  7916 | during                        | PomGeneExRNA
     4 | in_absence_of                 | PomGeneExRNA
   672 | in_presence_of                | PomGeneExRNA
    25 | occurs_in                     | PomGeneExRNA
   299 | happens_during                | biological_process
   241 | has_input                     | biological_process
   216 | has_regulation_target         | biological_process
    34 | occurs_at                     | biological_process
     6 | occurs_in                     | biological_process
    88 | part_of                       | biological_process
     1 | regulates_activity_of         | biological_process
   400 | coincident_with               | cellular_component
  1858 | exists_during                 | cellular_component
    17 | not_exists_during             | cellular_component
    38 | part_of                       | cellular_component
   551 | assayed_enzyme                | fission_yeast_phenotype
   267 | assayed_protein               | fission_yeast_phenotype
    17 | assayed_region                | fission_yeast_phenotype
   224 | assayed_substrate             | fission_yeast_phenotype
    43 | assayed_transcript            | fission_yeast_phenotype
 19880 | assayed_using                 | fission_yeast_phenotype
 11200 | has_penetrance                | fission_yeast_phenotype
 14549 | 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
    37 | directly_negatively_regulates | molecular_function
    28 | directly_positively_regulates | molecular_function
   552 | happens_during                | molecular_function
   640 | has_direct_input              | molecular_function
  1990 | has_input                     | molecular_function
   401 | has_regulation_target         | molecular_function
   129 | occurs_at                     | molecular_function
   103 | occurs_in                     | molecular_function
   879 | part_of                       | molecular_function
     2 | located_in                    | subunit_composition
(55 rows)


number of annotations using extensions by cv:
 count |      base_cv_name       
-------+-------------------------
     2 | subunit_composition
   734 | PomGeneExRD
   777 | biological_process
  1283 | PomGeneExProt
  2140 | cellular_component
  3656 | molecular_function
  8570 | PomGeneExRNA
  9994 | PSI-MOD
 33816 | gene_ex
 41386 | fission_yeast_phenotype
(10 rows)