Anchor: Archaeologists can trace their origins to the builders of the first cities, Harappa and Mohenjodaro, in the Indus valley.
Entailed: Harappa and Mohenjodaro are the first cities.
Contradiction: Their origins did not trace back to the builders of the first cities.
Contradiction: A group performs indoors.
Contradiction: a referee jumps in at a hockey game
Contradiction: Sai had pale skin.
Contradiction: Rugby players are playing on a field.