1098
the avalanches originated in an extensive mass of rock that had previously been hydrothermally altered in large part to clay .
 entity origin: avalanches, mass
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: component whole, NA, instrument agency, member collection, cause effect, entity destination, content container, message topic, product producer, entity origin 
Text: {0} 
Answer:
 entity origin: avalanches, mass