Anchor: One solution would be to conduct the case studies first in a set of sites chosen for representativeness and to verify the findings from the case study through targeted examination of
Entailed: One solution would be to do case studies  and then verify findings.  
Contradiction: Case studies will not help this problem at all.  
Contradiction: Someone is cooking toast.
Contradiction: Someone plays guitar.
Contradiction: A surfer is sitting on his surfboard on the beach.
Contradiction: The man is standing outside.