instruction:
In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
question:
Passage: The Abana was sailing from Liverpool to Savannah, Georgia when she was caught in a storm in the Irish Sea. She was spotted at 3 pm drifting in a northwesterly direction with her sails torn to shreds. The crew mistook Blackpool Tower for a lighthouse and the ship was first spotted foundering at North Pier, and ended up drifting north and was wrecked off Little Bispham at 5 pm. Flares were fired and the lifeboat was called out. The alarm was raised by the landlord of the Cleveleys Hotel. Due to the weather conditions, the Blackpool lifeboat Samuel Fletcher had to be taken some overland to Bispham before it could be launched. The lifeboat had a crew of 16, and the Abana had a crew of 17, all of whom were taken on board along with the ship's dog, which belonged to Captain Danielson. The lifeboat grounded on a sandbank whilst returning to shore, but some of the crew members pushed the boat afloat and they managed to reach shore safely. All were taken to the Red Lion Inn to recover from their ordeal. The ship's bell and dog were given to the landlord of the Cleveleys Hotel, who had raised the alarm.
Link Information:

Two Lancashire architects, James Maxwell and Charles Tuke, designed the tower and oversaw the laying of its foundation stone on 29 September 1891 Question: When was the structure the crew of the Abana mistook for a lighthouse constructed?
answer:
Answer: 1891

question:
Passage: His first major exposure was starring in Oh Grow Up, a short-lived sitcom created by Alan Ball. He later played the role of Steven Keats for two seasons in the NBC sitcom Three Sisters. He appeared in the 2005 motion picture War of the Worlds in the role of Tim, the stepfather of Dakota Fanning and Justin Chatwin's characters. In 2006 he played Todd Beamer in United 93. David landed the lead role in 2007's I'll Believe You, a family-friendly sci-fi comedy. In 2008 he was "Mike Harness" in Lipstick Jungle on NBC for two seasons, and simultaneously played "Kenny Kagan" on The Starter Wife on USA. In 2010 he guest starred on , White Collar, and The Mentalist. He appeared in the film Sex and The City 2 as a guest at the wedding. Basche had a small role in the 2017 mystery film The Vanishing of Sidney Hall.
Link Information: none Question: Of the television shows that Basche had a role in, which had the most seasons?
answer:
Answer: none

question:
Passage: Maryanoff has been active in the fields of medicinal chemistry and organic chemistry. He is an inventor of topiramate, a unique sugar sulfamate drug, which has been marketed worldwide for the treatment of epilepsy and migraine, attaining annual sales of more than $2 billion. Topiramate is also a principal component of the antiobesity drug Qsymia. Maryanoff is an internationally renowned expert in drug design and drug discovery, especially in the application of protein structure-based drug design. He made seminal contributions to understanding the stereochemistry and mechanism of the Wittig reaction; adapted the cobalt-catalyzed alkyne trimerization to the synthesis of macrocycles; and devised novel peptides that undergo self-assembly to mimic native collagen structurally and functionally. Maryanoff is an author on 280 scientific publications, including several books (editor), book chapters, and review articles. He is an inventor on 100 issued U.S. patents, has presented over 185 invited lectures worldwide, and mentored 11 postdoctoral associates. Maryanoff organized and edited a special memorial issue of the Journal of Medicinal Chemistry to honor the memory of Dr. Paul Janssen (2005) and has served on numerous editorial advisory boards for scientific journals and research grant review committees.
Link Information: Topiramate was discovered in 1979 by Bruce E. Maryanoff and Joseph F. Gardocki during their research work at McNeil Pharmaceuticals. Question: How many years ago was the unique sugar sulfamate drug invented by Maryanoff approved for medical use in the U.S.?
answer:
Answer: 1979