Anchor: In automated systems, they are represented by what can be referred to generically as electronic signatures.
Entailed: Electronic signatures are used with automated systems.
Contradiction: Automated systems cannot use electronic signatures.
Contradiction: Why do you think we had such a great turnout for this election?
Contradiction: It is sometimes wise to have a higher price in mind when haggling.
Contradiction: You aren't limited at all.
Contradiction: He isn't an economics writer.