4880
when the synaptic input to the axon was stimulated before eliciting an action potential in the axon , transmitter release from the axon was enhanced .
 entity origin: transmitter, axon
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:  transmitter, axon 
Answer:
 entity origin: transmitter, axon