id	keyword
cril-279	language
cril-279	evolution
cril-279	linguistics
cril-279	new
cril-279	research
cril-279	york
cril-279	language evolution
cril-279	theory
cril-279	colorado
cril-279	science
cril-279	neo
cril-279	symbols
cril-279	biology
cril-279	jackendoff
cril-279	syntax