On another matter, Jones said the United States is nearly certain that an American missile strike in Pakistan last week killed the top-ranked Taliban leader in the country, and that a leadership struggle has since emerged within the militant group.
VOA: standard.2009.08.09
Meaning that group one, the best ranked companies, did better than group two.
The researchers were able to control where in a group an individual ranked by the order in which it was introduced into its group (newly introduced monkeys almost always adopt a role subordinate to existing group members).