def test_extraction():
from sematch.nlp import Extraction
from sematch.semantic.sparql import EntityFeatures
upm = EntityFeatures().features('http://dbpedia.org/resource/Technical_University_of_Madrid')
extract = Extraction()
assert extract.extract_nouns(upm['abstract']) is not None
assert extract.extract_verbs(upm['abstract']) is not None
assert extract.extract_chunks_doc(upm['abstract']) is not None
cats = extract.category_features(upm['category'])
assert extract.category2words(cats) is not None
