Anchor: In 1997, LSC adopted final regulations clarifying a504(a)(16).
Entailed: In 1997 the LSC adopted final regulations. 
Contradiction: In 2004 the LSC adopted final regulations. 
Contradiction: I don't know which engine are you talking about.
Contradiction: He hit the table hard a couple of times.  
Contradiction: She threw the fatal letter away.
Contradiction: I find pleasure in trimming the grass and I like the end result. I own several pieces of garden equipment.