Man-woman relationships 930 History 410 Families 322 Murder 186 Social life and customs 185 Women 180 World War, 1939-1945 171 more ... Social conditions 145 Friendship 116 Adultery 98 Revenge 96 Investigation 91 Conduct of life 78 Fathers and daughters 77 Fathers and sons 77 Love 75 Triangles (Interpersonal relations) 75 Sexual behavior 66 Gangsters 65 Police 65 Criminals 62 Criminal investigation 61 Married people 60 Male friendship 59 Mothers and daughters 58 Mothers and sons 58 Death 57 Politics and government 56 Sisters 56 Teenagers 56 less ...