Database: european_football_2
Question: Among the players whose height is over 180, how many of them have a volley score of over 70?
SQL: SELECT COUNT(DISTINCT t1.id) FROM Player AS t1 INNER JOIN Player_Attributes AS t2 ON t1.player_api_id = t2.player_api_id WHERE t1.height > 180 AND t2.volleys > 70