Anchor: i don't know if they do it until yet
Entailed: I am not sure whether they do it yet.
Contradiction: I am certain they already started.
Contradiction: The CV-based estimates of VSL collectively are not considered effective in representing the population affected by pollution.
Contradiction: TWO people fix a race car
Contradiction: Kintetsu Station is at the margin of the city, a notorious area.
Contradiction: There are two people playing a game.