Question: Which year had 0 points and an AGS JH23B chassis?
SQL: SELECT "Year" FROM "2-1226517-1" WHERE "Points" = 0.0 AND "Chassis" = 'AGS JH23B';

Question: How many points does the year after 1986 with a AGS JH23B chassis have?
SQL: SELECT "Points" FROM "2-1226517-1" WHERE "Year" > 1986.0 AND "Chassis" = 'AGS JH23B';

Question: How many points did the Tyrrell Racing Organisation have?
SQL: SELECT "Points" FROM "2-1226517-1" WHERE "Entrant" = 'Tyrrell Racing Organisation';