In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Which acronym is the shortest among ANSI, IESNA and ASHRAE?, Context: The Illuminating Engineering Society of North America (IESNA), in conjunction with organizations like ANSI and ASHRAE, publishes guidelines, standards, and handbooks that allow categorization of the illumination needs of different built environments. Manufacturers of lighting equipment publish photometric data for their products, which defines the distribution of light released by a specific luminaire. This data is typically expressed in standardized form defined by the IESNA.
ANSI

What does the city have ?, Context: The city's planned design included specific areas for almost everything, including accommodation, Hotels Sectors North and South. New hotel facilities are being developed elsewhere, such as the hotels and tourism Sector North, located on the shores of Lake Paranoá. Brasília has a range of tourist accommodation from inns, pensions and hostels to larger international chain hotels. The city's restaurants cater to a wide range of foods from local and regional Brazilian dishes to international cuisine.
planned design included specific areas for almost everything, including accommodation

What was the system to replace AI?, Context: Airborne Interception radar (AI) was unreliable. The heavy fighting in the Battle of Britain had eaten up most of Fighter Command's resources, so there was little investment in night fighting. Bombers were flown with airborne search lights out of desperation[citation needed], but to little avail. Of greater potential was the GL (Gunlaying) radar and searchlights with fighter direction from RAF fighter control rooms to begin a GCI system (Ground Control-led Interception) under Group-level control (No. 10 Group RAF, No. 11 Group RAF and No. 12 Group RAF).

GCI system