Table: jewelpet_universe
Columns: name
jewel
species
gender
jewel_power
attribute
birthday
media_debut
voice_actor

Question: who was the voice actor when the species is hedgehog?
SQL: SELECT "voice_actor" FROM jewelpet_universe WHERE "species" = 'Hedgehog'

Question: who is the voice actor with the birthday march 26?
SQL: SELECT "voice_actor" FROM jewelpet_universe WHERE "birthday" = 'March 26'

Question: what is the jewel power when the media debut is ep 17?
SQL: SELECT "jewel_power" FROM jewelpet_universe WHERE "media_debut" = 'EP 17'

Question: how many times is the jewel malachite?
SQL: SELECT COUNT("birthday") FROM jewelpet_universe WHERE "jewel" = 'Malachite'

Question: What is the species when jewel is coal?
SQL: SELECT "species" FROM jewelpet_universe WHERE "jewel" = 'Coal'