Anchor: But, as it will never do if John, too, can prove an alibi, she writes him an anonymous note ”still copying his hand-writing  ”which takes him to a remote spot where it is exceedingly unlikely that anyone will see him. 
Entailed: She was copying someone's handwriting when she wrote the note.
Contradiction: She signed her name on the note she wrote to him.
Contradiction: a dog sleeping in the woods
Contradiction: The woman went to her room upstairs.
Contradiction: China is buying metal through Martian scrap dealers.
Contradiction: The Estoril Tennis Club is an excellent center along with the other ones.