List out all the players fullname who won the championship in 1970.
full name refers to firstName, middleName, lastName; won the championship refers to round = 'F'; in 1970 refers to year = 1970
SELECT DISTINCT T3.firstName, T3.middleName, T3.lastName FROM series_post AS T1 INNER JOIN players_teams AS T2 ON T1.tmIDWinner = T2.tmID INNER JOIN players AS T3 ON T3.playerID = T2.playerID WHERE T1.year = 1970 AND T1.round = 'F'