nanun Yenghilul [sensayngnimtuli [e/kunyeka ttottokhatanun sasil]ul moluko isstako] sayngkakhanta
I-TOP Y-ACC teacher-NOM e/she-NOM smart-ADN fact-ACC not.know-COMP be-DCL-COMP think
I think that it is Yenghi who the teachers are not aware of the fact that she is really smart.