Question: What is the name of the castle in the headquarters of the company that employs Arna Selznick?

Knowledge 1: Arna Selznick
Arna Selznick is a Canadian director and artist, known for directing Nelvana's 1985 animated film "The Care Bears Movie". Arna owns and operates a studio called Dancingmonkeys with her husband/partner John van Bruggen. [SEP] Knowledge 2: New Haven, Connecticut
New Haven's economy originally was based in manufacturing, but the postwar period brought rapid industrial decline; the entire Northeast was affected, and medium-sized cities with large working-class populations, like New Haven, were hit particularly hard. Simultaneously, the growth and expansion of Yale University further affected the economic shift. Today, over half (56%) of the city's economy is now made up of services, in particular education and health care; Yale is the city's largest employer, followed by Yale – New Haven Hospital. Other large employers include St. Raphael Hospital, Smilow Cancer Hospital, Southern Connecticut State University, Assa Abloy Manufacturing, the Knights of Columbus headquarters, Higher One, Alexion Pharmaceuticals, Covidien and United Illuminating. Yale and Yale-New Haven are also among the largest employers in the state, and provide more $100,000+-salaried positions than any other employer in Connecticut.[citation needed] [SEP] Knowledge 3: German Castles Association
The German Castles Association () or DBV is dedicated to the conservation of historic defensive and residential buildings as witnesses of history and culture and has its headquarters at Marksburg Castle above Braubach on the Rhine. It owns the organisation known as the European Castles Institute ("Europäisches Burgeninstitut") or (EBI) whose library and archives are housed in Philippsburg Palace in Braubach.
Knowledge 1: Arna Selznick
Arna Selznick is a Canadian director and artist, known for directing Nelvana's 1985 animated film "The Care Bears Movie". Arna owns and operates a studio called Dancingmonkeys with her husband/partner John van Bruggen. [SEP] Knowledge 2: Cork (city)
Cork City is at the heart of industry in the south of Ireland. Its main area of industry is pharmaceuticals, with Pfizer Inc. and Swiss company Novartis being big employers in the region. The most famous product of the Cork pharmaceutical industry is Viagra. Cork is also the European headquarters of Apple Inc. where over 3,000 staff are involved in manufacturing, R&D and customer support. Logitech and EMC Corporation are also important IT employers in the area. Three hospitals are also among the top ten employers in the city (see table below). [SEP] Knowledge 3: German Castles Association
The German Castles Association () or DBV is dedicated to the conservation of historic defensive and residential buildings as witnesses of history and culture and has its headquarters at Marksburg Castle above Braubach on the Rhine. It owns the organisation known as the European Castles Institute ("Europäisches Burgeninstitut") or (EBI) whose library and archives are housed in Philippsburg Palace in Braubach.
Knowledge 1: Arna Selznick
Arna Selznick is a Canadian director and artist, known for directing Nelvana's 1985 animated film "The Care Bears Movie". Arna owns and operates a studio called Dancingmonkeys with her husband/partner John van Bruggen. [SEP] Knowledge 2: Natalie Turner
Turner is currently a professor for the Classical Animation program at Sheridan College in Oakville. Previously she taught for Max the Mutt Animation School in Toronto. She will teach the fifth year of the Animex (Animation Exploration) workshop at Visual Arts Brampton Creative Studio. [SEP] Knowledge 3: Cork (city)
Cork City is at the heart of industry in the south of Ireland. Its main area of industry is pharmaceuticals, with Pfizer Inc. and Swiss company Novartis being big employers in the region. The most famous product of the Cork pharmaceutical industry is Viagra. Cork is also the European headquarters of Apple Inc. where over 3,000 staff are involved in manufacturing, R&D and customer support. Logitech and EMC Corporation are also important IT employers in the area. Three hospitals are also among the top ten employers in the city (see table below).

Answer: Casa Loma