Question: Golden Circle is a subsidiary of a company that had how many brand in 2015?

Context paragraphs:
Golden Circle Air: Golden Circle Air, Inc. was an American aircraft manufacturer based in De Soto, Iowa.  The company specialized in the manufacture of ultralight aircraft in the form of kits for amateur construction and ready-to-fly aircraft under the US FAR 103 Ultralight Vehicles rules.

Stanozolol: Stanozolol, sold under many brand names, is a synthetic anabolic-androgenic steroid (AAS) which was derived from dihydrotestosterone (DHT).  It was developed by American pharmaceutical company Winthrop Laboratories (Sterling Drug) in 1962, and has been approved by the FDA for human use, though it is no longer marketed in this country.

Kraft Heinz: The Kraft Heinz Company is an American food company formed by the merger of Kraft Foods Group and Heinz in 2015.  The merger was backed by 3G Capital and Berkshire Hathaway, which invested US$10 billion in the deal, making Kraft Heinz worth about US$46 billion.  In 2015, the Kraft Heinz Company had 13 different brands with $500 million or more each in annual sales.

Golden Circle (company): Golden Circle is a subsidiary of US-based Kraft Heinz, based in Brisbane, Queensland.  Its main operations are food processing.  Golden Circle was inducted into the Queensland Business Leaders Hall of Fame in 2010, for its significant contribution to the economy of Queensland through the processing of food products notably fruit and vegetables.

Calcium/cholecalciferol: Calcium/cholecalciferol is a combination of a calcium salt (usually calcium carbonate) and vitamin D (cholecalciferol), available under many brand names and in many forms such as chewable tablets, coated tablets, and effervescent tablets.  It is used to prevent and treat lack of calcium and vitamin D in the elderly, as well as adjunctive therapy for osteoporosis.

Promethazine: Promethazine is a neuroleptic medication and first-generation antihistamine of the phenothiazine family.  The drug has strong sedative and weak antipsychotic effects.  It also reduces motion sickness and has antiemetic (via its action on the dopamine receptor D) and anticholinergic properties.  In some countries it is prescribed for insomnia when benzodiazepines are contraindicated.  It is available in many countries under many brand names.  Promethazine was developed in the mid 1940s when a team of scientists from Rhône-Poulenc laboratories were able to synthesize it from phenothiazine and a diamine side chain of diphenhydramine.

George W. L. Bickley: George Washington Lafayette Bickley (1823 – August 1867) was the founder of the Knights of the Golden Circle, a Civil War era secret society used to promote the interests of the Southern United States by preparing the way for annexation of a "golden circle" of territories in Mexico, Central America, and the Caribbean which would be included into the United States as southern or slave states. Bickley was arrested by the United States government and it was during this time he wrote a letter to Abraham Lincoln expressing his distastes with Lincoln's handling of the government.

Golden Circle Air T-Bird: The Golden Circle Air T-Bird is a family of high-wing, strut-braced, pusher configuration ultralight aircraft that was produced by Teratorn Aircraft of Clear Lake, Iowa from 1983 to 1989 and then Golden Circle Air of De Soto, Iowa from 1989 until the mid-2000s.  In 2011 the aircraft were back in production by Indy Aircraft.  The aircraft is produced as a kit for amateur construction.

Knights of the Golden Circle: The Knights of the Golden Circle (KGC) was a secret society in the mid-nineteenth-century United States.  The original objective of the KGC was to annex a "golden circle" of territories in Mexico, Central America, Confederate States of America, and the Caribbean as slave states, to be led by Maximilian I of Mexico.

Golden Circle (proposed country): The Golden Circle (Spanish: "Círculo Dorado" ) was an unrealized 1850s proposal by the Knights of the Golden Circle to expand the number of slave states.  It envisioned the annexation of several areas—Mexico, Central America, northern South America, Cuba, and the rest of the Caribbean—into the United States in order to vastly increase the number of slave states (it was proposed that Mexico alone be divided into 25 new slave states) and thus the power of the slave holding Southern upper classes.  After the Dred Scott Decision (1857) increased anti-slavery agitation, it was advocated by the Knights of the Golden Circle that the Southern United States should secede in their own confederation and invade and annex the area of the golden circle to vastly expand the power of the South.

Supporting paragraphs: Golden Circle (company) Kraft Heinz
Answer: 13