814
the exhibition describes the fight against the forces of nature that has been central to the history of vasa ever since it sunk in 1628 .
 message topic: exhibition, fight
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:
 message topic: exhibition, fight