CREATE TABLE table_name_4 (regular_season_champion_s_ VARCHAR, tournament_champion VARCHAR, year VARCHAR)

Which Regular Season Champion(s) has a Tournament Champion of west virginia in 1955 56?
SELECT regular_season_champion_s_ FROM table_name_4 WHERE tournament_champion = "west virginia" AND year = "1955–56"
SELECT "regular_season_champion_s_" FROM "table_name_4" WHERE "1955–56" = "year" AND "tournament_champion" = "west virginia"