CREATE TABLE table_name_55 (fighting_spirit INT, name VARCHAR, technique VARCHAR)

Which Fighting Spirit has a Name of tsurugamine, and a Technique smaller than 10?
SELECT AVG(fighting_spirit) FROM table_name_55 WHERE name = "tsurugamine" AND technique < 10
SELECT AVG("fighting_spirit") FROM "table_name_55" WHERE "name" = "tsurugamine" AND "technique" < 10