Topic 1: Increasing travels between countries enable people to learn different cultures or to increase tension between people from different countries

Moral + code, dilemma, duty, education, ground, imperative, issue, obligation, principle, problem, responsibility, standard, support, value

Native + culture, inhabitant, language, people, population, speaker, species, tongue

Negative + ad, answer, aspect, attitude, comment, consequence, correlation, effect, emotion, feedback, image, impact, publicity, reaction, response, result, side, thought, value, view

Notable + ability, achievement, change, example, exception, failure, feature, success

Normal + child, circumstance, development, family, form, genre, habit, level, life, people, practice, procedure, range, reaction, situation, subject, way