Extend coverage
Error analysis on the development set
- fix errors (N+f+gen+pl/ADJ+n+*/N+(n|f)+gen+pl/N+f+loc+sg/
N+n:-ие and N+f:-ия)
- improve guesser (hyphen/-ие,-ия/)
- add more conj/prep/adv
- add N+m:-ь
- add verbs in -овать,  -ять, -уть

Guessing error rate reduces from 40% to 20%