CREATE TABLE table_name_45 (team_2 VARCHAR2, team_1 VARCHAR2)

Which is team 2 when team 1 is ECAC Chaumont (d2)?
SELECT team_2 FROM table_name_45 WHERE team_1 = "ecac chaumont (d2)"
SELECT "team_2" FROM "table_name_45" WHERE "ecac chaumont (d2)" = "team_1"