4497
they had stumbled upon a nest of saltwater crocodiles that had made their home deep into the swamp , near the coastline .
 member collection: nest, crocodiles
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:  nest, crocodiles 
Answer:
 member collection: nest, crocodiles