200
This is a group of examples: Conflict, cooperation, interdependence, balance, systems, cycles, order, evolution, equilibrium, energy, matter, pattern, interaction, justice, prejudice, relationships, power, emotions, oppression, organization, government, law, identity, values, culture, influence, supply/demand, place value, facts, standard units, graphs, summary, genera, voice, fluency, symbolism, allegory, etc.
What are subject concepts (related concepts in PYP)