text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_15187735_20 (segment_c VARCHAR, segment_d VARCHAR)
  ### Question:
  How many segment C are there in the episode where segment D is bicycle tires?
  ### Answer:
  SELECT COUNT(segment_c) FROM table_15187735_20 WHERE segment_d = "Bicycle Tires"