What is Segment A where Segment C is Sushi (part 1)? 
CREATE TABLE "season_15_2010" (
  "series_ep" text,
  "episode" real,
  "netflix" text,
  "segment_a" text,
  "segment_b" text,
  "segment_c" text,
  "segment_d" text
);
SELECT "segment_a" FROM "season_15_2010" WHERE "segment_c"='Sushi (Part 1)';