Some code for this already exists, which you may find helpful

[elliott5]

https://github.com/elliott5/ner is fork of https://github.com/sbl/ner with added binary relationship detection.

[nguyendangminh]

Thanks @elliott5. When finding package for using MITIE with Go I found sbl/ner, but for some following reasons I decided to write by myself:

• Training routine is not implemented
• It doesn't handle thread safe
• It's not maintained for a long time.

[nguyendangminh]

I've just pushed my implementation.

[elliott5]

Well done so far, cmd/extractor works well on my machine.

I can see you've still some more work to do on cmd/train, as it does not yet compile:
# github.com/michlabs/gomitie/cmd/train
./main.go:6: imported and not used: "fmt"
./main.go:9: imported and not used: "github.com/michlabs/gomitie/ner"
./main.go:20: not enough arguments in call to flag.StringVar

But I can also see that the library code to do the training is mostly in place.

I'll watch the project with interest :)