Anchor: We should be back here before dawn.
Entailed: We will be back before the sun rises.
Contradiction: We won't be back until next week.
Contradiction: He pushed off his hat.
Contradiction: Tim LaHaye wrote a series of books.
Contradiction: He hugged me for a long time and stayed by my side as we held hands. 
Contradiction: We cannot because we don't usually do this.