Who was the play by play commentator for ABC after 1998?
CREATE TABLE "1990s" (
  "year" real,
  "network" text,
  "play_by_play" text,
  "color_commentator_s" text,
  "sideline_reporter_s" text
);
SELECT "play_by_play" FROM "1990s" WHERE "network"='abc' AND "year">1998;