Anchor: Daniel Hungerford observed that the Richmond-Kotelchuck model suggests that changes in practice result from effort applied to all three elements of the model-political will, social strategy, and knowledge base.
Entailed: Daniel Hungerford made an observation regarding the Richmond-Kotelchuck model.
Contradiction: Daniel Hungerford said that the Richmond-Kotelchuck model did not suggest any changes.
Contradiction: People are on the beach in the summer.
Contradiction: Ancient tools from America and Europe have more in common with each other than tools from Asia.
Contradiction: A boy kisses his brother
Contradiction: A person is on a surf board.