CREATE TABLE table_10618 ("Entrant" CLOB, "Constructor" CLOB, "Chassis" CLOB, "Engine" CLOB, "Tyre" CLOB, "Driver" CLOB, "Rounds" CLOB)

In what rounds did the P15 Chassis and tyre D participate?
SELECT "Rounds" FROM table_10618 WHERE "Tyre" = 'd' AND "Chassis" = 'p15'
SELECT "Rounds" FROM "table_10618" WHERE "Chassis" = 'p15' AND "Tyre" = 'd'