111
our army was successfully engaged during the day with strong rearguards of all arms on the petit morin river , thereby materially assisting the progress of the french armies on our right and left , against whom the enemy was making his greatest efforts .
 None
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:
 NA: enemy, efforts