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

Ex Input:
What is the area of expertise of scientists who want to measure radiance from vegetation canopies?, Context: Oxygen presents two spectrophotometric absorption bands peaking at the wavelengths 687 and 760 nm. Some remote sensing scientists have proposed using the measurement of the radiance coming from vegetation canopies in those bands to characterize plant health status from a satellite platform. This approach exploits the fact that in those bands it is possible to discriminate the vegetation's reflectance from its fluorescence, which is much weaker. The measurement is technically difficult owing to the low signal-to-noise ratio and the physical structure of vegetation; but it has been proposed as a possible method of monitoring the carbon cycle from satellites on a global scale.

Ex Output:
remote sensing


Ex Input:
What is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar case, Context: Federal law originates with the Constitution, which gives Congress the power to enact statutes for certain limited purposes like regulating interstate commerce. The United States Code is the official compilation and codification of the general and permanent federal statutes. Many statutes give executive branch agencies the power to create regulations, which are published in the Federal Register and codified into the Code of Federal Regulations. Regulations generally also carry the force of law under the Chevron doctrine. Many lawsuits turn on the meaning of a federal statute or regulation, and judicial interpretations of such meaning carry legal force under the principle of stare decisis.

Ex Output:
stare decisis


Ex Input:
What was different between the cities?, Context: The 5th Avenue Theatre, built in 1926, stages Broadway-style musical shows featuring both local talent and international stars. Seattle has "around 100" theatrical production companies and over two dozen live theatre venues, many of them associated with fringe theatre; Seattle is probably second only to New York for number of equity theaters (28 Seattle theater companies have some sort of Actors' Equity contract). In addition, the 900-seat Romanesque Revival Town Hall on First Hill hosts numerous cultural events, especially lectures and recitals.

Ex Output:

Seattle has "around 100" theatrical production companies and over two dozen live theatre venues, many of them associated with fringe theatre