[lemma=","] [tag=PRP] [tag=MD] [word=be] [□]
[lemma=","] [tag=PRP] [tag=MD] [word=be] [□=□]
[lemma=","] [tag=PRP] [tag=MD] [word=be] [!□]
However , it can be activated by using the " Emulate3Buttons " feature .