Who is the play by play commentator for the game that has Alan Massengale as Studio Host?
CREATE TABLE "2000s" (
  "channel" text,
  "play_by_play" text,
  "color_commentator_s" text,
  "studio_host" text,
  "studio_analysts" text
);
SELECT "play_by_play" FROM "2000s" WHERE "studio_host"='alan massengale';