Vizuri wanataka kuwa na uhakika kila mtu anajua misingi yake. Si kila mtu anayeenda shule Marekani au Uingereza. Kwa mfano, shule yangu ya Kroatia hata haikutaja matrices, maana, wastani na NULL ambayo ni mambo ya msingi katika mfumo wa shule wa Marekani.####[['NULL', 'Mathematical_Related_Concept', 'NEU'], ['matrices', 'Mathematical_Related_Concept', 'NEU'], ['maana', 'Mathematical_Related_Concept', 'NEU'], ['wastani', 'Mathematical_Related_Concept', 'NEU'], ['mode', 'Mathematical_Related_Concept', 'NEU']]