Name the series ^ when the CPU clock is 1500 and the model is t-52r
CREATE TABLE "available_processors" (
  "series" text,
  "model" text,
  "cpu_clock_m_hz" text,
  "cpu_cores" real,
  "tdp_w" text,
  "l2_cache_ki_b" text,
  "radeon_cores" real,
  "ddr3_speed" real
);
SELECT "series" FROM "available_processors" WHERE "cpu_clock_m_hz"='1500' AND "model"='t-52r';