CREATE TABLE table_54611 ("Year" FLOAT, "Class" TEXT, "Team" TEXT, "Points" FLOAT, "Wins" FLOAT)

How many wins for bikes with under 54 points, team yamaha, a 250cc bike, and before 1977?
SELECT COUNT("Wins") FROM table_54611 WHERE "Points" < '54' AND "Team" = 'yamaha' AND "Class" = '250cc' AND "Year" < '1977'
SELECT COUNT("Wins") FROM "table_54611" WHERE "Class" = '250cc' AND "Points" < '54' AND "Team" = 'yamaha' AND "Year" < '1977'