[tag=":"] [□=□] □ □
[tag=":"] [tag=□] □ □
[tag=":"] [lemma=□] □ □
Lutz errs , perhaps , in the other direction by insisting on " unambiguous language " as an alternative ( as if that 's entirely possible ) , but his treatment - - with loads of provocative examples - - is great fodder for classroom discussion .