The string list difference service takes in ['a','b','c'] and ['a','e','c'] and returns the list ['b','e'].
a,b,c
org.embl.ebi.escience.scuflworkers.java.SplitByRegex
a,e,c
org.embl.ebi.escience.scuflworkers.java.SplitByRegex
org.embl.ebi.escience.scuflworkers.java.StringSetDifference