[crazygringo]

How does it make it explicit? You need a dictionary to figure it out, no? Same as e.g. Japanese?

[kccqzy]

Right but such dictionaries are already built in to all major operating systems. The double-click-to-select-word interaction works well with Chinese and Japanese in all major operating systems. Without such dictionaries you can't even implement word selection.

[fomine3]

It works until it recognizes 外国人参政権 as foreign/carrot/regime