Input: New York City
The iconic New York City Subway system is the largest rapid transit system in the world when measured by stations in operation, with 469, and by length of routes. New York's subway is notable for nearly the entire system remaining open 24 hours a day, in contrast to the overnight shutdown common to systems in most cities, including Hong Kong, London, Paris, Seoul, and Tokyo. The New York City Subway is also the busiest metropolitan rail transit system in the Western Hemisphere, with 1.75 billion passengers rides in 2014, while Grand Central Terminal, also popularly referred to as "Grand Central Station", is the world's largest railway station by number of train platforms.

Which subway system is considered the largest in the world?
Output: New York City Subway system

Input: Pesticide
In general, a pesticide is a chemical or biological agent (such as a virus, bacterium, antimicrobial, or disinfectant) that deters, incapacitates, kills, or otherwise discourages pests. Target pests can include insects, plant pathogens, weeds, mollusks, birds, mammals, fish, nematodes (roundworms), and microbes that destroy property, cause nuisance, or spread disease, or are disease vectors. Although pesticides have benefits, some also have drawbacks, such as potential toxicity to humans and other species. According to the Stockholm Convention on Persistent Organic Pollutants, 9 of the 12 most dangerous and persistent organic chemicals are organochlorine pesticides.

Are pesticides chemical or biological agents?
Output: a pesticide is a chemical or biological agent

Input: Electric motor
An advantage of the universal motor is that AC supplies may be used on motors which have some characteristics more common in DC motors, specifically high starting torque and very compact design if high running speeds are used. The negative aspect is the maintenance and short life problems caused by the commutator. Such motors are used in devices such as food mixers and power tools which are used only intermittently, and often have high starting-torque demands. Multiple taps on the field coil provide (imprecise) stepped speed control. Household blenders that advertise many speeds frequently combine a field coil with several taps and a diode that can be inserted in series with the motor (causing the motor to run on half-wave rectified AC). Universal motors also lend themselves to electronic speed control and, as such, are an ideal choice for devices like domestic washing machines. The motor can be used to agitate the drum (both forwards and in reverse) by switching the field winding with respect to the armature.

When is torque most important in universal motor applications?
Output: starting

Input: USB
IN and OUT tokens contain a seven-bit device number and four-bit function number (for multifunction devices) and command the device to transmit DATAx packets, or receive the following DATAx packets, respectively. An IN token expects a response from a device. The response may be a NAK or STALL response, or a DATAx frame. In the latter case, the host issues an ACK handshake if appropriate. An OUT token is followed immediately by a DATAx frame. The device responds with ACK, NAK, NYET, or STALL, as appropriate.

An IN token expects what?
Output:
a response from a device