a) Pakubvisa sikuruu, hapana chikonzero chekufambisa kana kupatsanura mudziyo wekutyaira;

b) Pakubvisa bearing yepakati, hapana chikonzero chekufambisa kana kubvisa sikuruu;

c) Chinotenderera chinogona kunyoroveswa pasina kupatsanura chirongo nechifukidziro.