• Marriage and love (28) • Using transportation (124) • Talking about one's mistakes (28) • Environmental issues (226) • Family events (during national holidays) (2) • Expressing date (59) • Weather and season (101) • Human relationships (255) • Weekends and holidays (47) • Expressing day of the week (13) • Describing location (70) • Performance & appreciation (8) • Dietary culture (104) • Hobby (103) • Describing a dish (119) • Mentality (191) • Using public institutions (post office) (8) • Family events (57) • Social system (81) • Law (42) • Life in Korea (16) • Hobbies (48) • Science & technology (91) • Philosophy, Ethics (86) • Language (160) • Describing physical features (97) • Religion (43) • Geological information (138) • Press (36) • The arts (76)