11.   When children are segregated by ability groups, a social hierarchy develops.

12.   A time of constant warfare, superstitious practices and strictly imposed social hierarchies.

13.   According to the study, children glean strong messages about respect and social hierarchies from television.

14.   All members have survived, and the females restore the comforting order of the social hierarchy.

15.   During Vinexpo, a social hierarchy quickly develops.

16.   Liberal egalitarians, just as predictably, took the study as proof that social hierarchy is a public health problem.

17.   Most communities of ducks and geese do have some sort of social hierarchy, a pecking order.

18.   Nature served, in the Romantic sense, to symbolize a society unbound by rigid social hierarchy.

19.   The mansion evokes a style of life where social hierarchy was revealed in every inch of decor, from choice of wood to the color of paint.

20.   Things begin in a reckless flurry of character intros, exuberantly rendered anecdotes and the explanation of the social hierarchy.