classes:  lecturer. The subject has too much in-depth knowledge and too high requirements for a school that does not belong to the economic sector such as information technology.  curriculum. The subject has too much in-depth knowledge and too high requirements for a school that does not belong to the economic sector such as information technology.  facility. The subject has too much in-depth knowledge and too high requirements for a school that does not belong to the economic sector such as information technology.  general. The subject has too much in-depth knowledge and too high requirements for a school that does not belong to the economic sector such as information technology.