Anchor: When we're there, however, she spends a large part of the evening on the phone or on the computer.
Entailed: She spends most of the night time on the computer or on the phone.
Contradiction: She spends a minor part of the evening on the phone or on the computer.
Contradiction: She never uses the phone or computer when we are there. 
Contradiction: When we're there, she ignores the phone and computer and talks to us.
Contradiction: Benjamin Franklin was still alive.
Contradiction: Meeting a real American need is a good thing.