extension relation counts:
 count |          name           |      base_cv_name       
-------+-------------------------+-------------------------
     8 | dependent_on            | biological_process
   190 | happens_during          | biological_process
   282 | has_input               | biological_process
   282 | has_regulation_target   | biological_process
    12 | independent_of          | biological_process
     2 | in_presence_of          | biological_process
     1 | not_happens_during      | biological_process
    28 | occurs_at               | biological_process
    13 | occurs_in               | biological_process
    65 | coincident_with         | cellular_component
    24 | dependent_on            | cellular_component
   900 | exists_during           | cellular_component
    20 | independent_of          | cellular_component
    16 | not_exists_during       | cellular_component
     4 | part_of                 | cellular_component
    23 | assayed_enzyme          | fission_yeast_phenotype
     9 | assayed_substrate       | fission_yeast_phenotype
  7369 | assayed_using           | fission_yeast_phenotype
  4887 | has_expressivity        | fission_yeast_phenotype
  6429 | has_penetrance          | fission_yeast_phenotype
    25 | is_bearer_of            | fission_yeast_phenotype
     1 | occurs_at               | fission_yeast_phenotype
    23 | occurs_in               | fission_yeast_phenotype
 36121 | during                  | gene_ex
     4 | in_absence_of           | gene_ex
   641 | in_presence_of          | gene_ex
    29 | occurs_in               | gene_ex
    66 | activated_by            | molecular_function
     8 | dependent_on            | molecular_function
   139 | happens_during          | molecular_function
   416 | has_direct_input        | molecular_function
   163 | has_regulation_target   | molecular_function
    23 | independent_of          | molecular_function
    62 | inhibited_by            | molecular_function
     9 | in_presence_of          | molecular_function
     3 | not_happens_during      | molecular_function
   128 | occurs_at               | molecular_function
     9 | occurs_in               | molecular_function
    13 | part_of                 | molecular_function
    11 | absent_during           | PSI-MOD
   155 | added_by                | PSI-MOD
   147 | added_during            | PSI-MOD
     8 | coincident_with         | PSI-MOD
     4 | has_direct_input        | PSI-MOD
     3 | in_presence_of          | PSI-MOD
   334 | level_fluctuates_during | PSI-MOD
  6781 | present_during          | PSI-MOD
    23 | removed_by              | PSI-MOD
    21 | removed_during          | PSI-MOD
     1 | required_for            | PSI-MOD
(50 rows)


number of annotations using extensions by cv:
 count |      base_cv_name       
-------+-------------------------
   734 | biological_process
   874 | molecular_function
   973 | cellular_component
  7412 | PSI-MOD
 16898 | fission_yeast_phenotype
 36739 | gene_ex
(6 rows)