Anchor: (2) preparation of a quality assurance plan with data quality objectives; (3) preparation of written descriptions of laboratory standard operating procedures (SOP's) for test organism culturing, toxicity testing, instrument calibration, sample chain-of-custody, laboratory sample tracking system, etc.; and (4) provision of adequate, qualified technical staff and suitable space and equipment to assure reliable data.
Entailed: Adequate qualified technical staff, suitable space are all required to assure reliable data. 
Contradiction: Provision of adequate, qualified technical staff and suitable space and equipment to assure unreliable and innacurate data.
Contradiction: The south supported the new deal more than the north, which was expected.
Contradiction: The continued talks have been unsuccessful after the exchange of hostages.
Contradiction: A homeless man is walking down the highway.
Contradiction: A boy is walking down the sidewalk.