3952
with medical ghostwriting , pharmaceutical companies pay both professional writers to produce papers and then pay other scientists or physicans to attach their names to these papers before they are published in a medical or scientific journals .
 product producer: writers, papers
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:  writers, papers 
Answer:
 product producer: writers, papers