4962
a number of papers have emanated from this laboratory on the chemistry of dl-pinonic acid ( i , ) and dl-pinolic acid ( ii.a ) .
 entity origin: papers, laboratory
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  papers, laboratory 
Answer:
 entity origin: papers, laboratory