In this task, you will be presented with a context from an academic paper and a question separated with a 
. You have to answer the question based on the context.

Four factual attributes pertaining to the 200 colleges are extracted from the U.S. News Statistics, which consists of Undergraduate Enrollment, Male/Female Ratio, Private/Public, and Region (Northeast, South, West, and Midwest).  
 Question: Which major geographical regions are studied?
Northeast U.S, South U.S., West U.S. and Midwest U.S.

The De7 database used for this study was designed by Marc Schroeder as one of the first attempts of creating diphone databases for expressive speech synthesis BIBREF2. The database contains three voice qualities (modal, soft and loud) uttered by a German female speaker, with about 50 minutes of speech available for each voice quality. 
 Question: What large corpus is used for experiments?
The De7 database

Non-contextual properties of a word. These features are derived directly from the word and capture the general tendency of a word being echoed in explanations. 
 Question: What non-contextual properties do they refer to?

These features are derived directly from the word and capture the general tendency of a word being echoed in explanations.