Input: Read this: Nanjing's airport, Lukou International Airport, serves both national and international flights. In 2013, Nanjing airport handled 15,011,792 passengers and 255,788.6 tonnes of freight. The airport currently has 85 routes to national and international destinations, which include Japan, Korea, Thailand, Malaysia, Singapore, USA and Germany. The airport is connected by a 29-kilometre (18 mi) highway directly to the city center, and is also linked to various intercity highways, making it accessible to the passengers from the surrounding cities. A railway Ninggao Intercity Line is being built to link the airport with Nanjing South Railway Station. Lukou Airport was opened on 28 June 1997, replacing Nanjing Dajiaochang Airport as the main airport serving Nanjing. Dajiaochang Airport is still used as a military air base.
Question: How many routes does Nanjing's airport run?

Output: 85 routes

Input: Read this: Hanover's leading cabaret-stage is the GOP Variety theatre which is located in the Georgs Palace. Some other famous cabaret-stages are the Variety Marlene, the Uhu-Theatre. the theatre Die Hinterbuhne, the Rampenlich Variety and the revue-stage TAK. The most important Cabaret-Event is the Kleines Fest im Groen Garten (Little Festival in the Great Garden) which is the most successful Cabaret Festival in Germany. It features artists from around the world. Some other important events are the Calenberger Cabaret Weeks, the Hanover Cabaret Festival and the Wintervariety.
Question: What is a notable achievement about the Kleines Fest im Groen Garten?

Output: most successful Cabaret Festival in Germany

Input: Read this: The city shares a 15-mile (24 km) border with Mexico that includes two border crossings. San Diego hosts the busiest international border crossing in the world, in the San Ysidro neighborhood at the San Ysidro Port of Entry. A second, primarily commercial border crossing operates in the Otay Mesa area; it is the largest commercial crossing on the California-Baja California border and handles the third-highest volume of trucks and dollar value of trade among all United States-Mexico land crossings.
Question: How many border crossings does San Francisco share with Mexico?

Output: unanswerable

Input: Read this: Within computer systems, two of many security models capable of enforcing privilege separation are access control lists (ACLs) and capability-based security. Using ACLs to confine programs has been proven to be insecure in many situations, such as if the host computer can be tricked into indirectly allowing restricted file access, an issue known as the confused deputy problem. It has also been shown that the promise of ACLs of giving access to an object to only one person can never be guaranteed in practice. Both of these problems are resolved by capabilities. This does not mean practical flaws exist in all ACL-based systems, but only that the designers of certain utilities must take responsibility to ensure that they do not introduce flaws.[citation needed]
Question: How can a computer with ACL be tricked?

Output:
unanswerable