CREATE TABLE table_52990 ("Constructor" CLOB, "Chassis" CLOB, "Engine" CLOB, "Tyres" CLOB, "Driver" CLOB, "Rounds" CLOB)

How many rounds did geoff lees drive with chassis of n180?
SELECT "Rounds" FROM table_52990 WHERE "Chassis" = 'n180' AND "Driver" = 'geoff lees'
SELECT "Rounds" FROM "table_52990" WHERE "Chassis" = 'n180' AND "Driver" = 'geoff lees'