[tag=MD] [word=add] [lemma=or] [lemma=remove] [□]
[tag=MD] [word=add] [lemma=or] [lemma=remove] [□=□]
[tag=MD] [word=add] [lemma=or] [lemma=remove] [□ | □]
With the use of WebEntree 's graphical user interface ( GUI ) - based administration subsystem , an aggregation service provider can add or remove a Web service component easily .