The string list union service takes in ['a','b','c'] and ['a','e','c'] and returns a list equivalent to ['a','b','c','e'].
a,b,c
org.embl.ebi.escience.scuflworkers.java.SplitByRegex
a,c,e
org.embl.ebi.escience.scuflworkers.java.SplitByRegex
org.embl.ebi.escience.scuflworkers.java.StringSetUnion