Anchor: High drystone walls curb the narrow roads and rugged farmhouses nestle in the bottom of the valley.
Entailed: The tight road is flanked by high drystone walls along its length.
Contradiction: The roads along the mountain are dangerous because they have no curb.
Contradiction: IRAS and 401(k)s do not raise public awareness about retirement saving opportunities.
Contradiction: There are two girls with a coloring book.
Contradiction: The mist turned into a downpour and the objects floated away. 
Contradiction: Which one are you talking about?