(subclass FixedPhone Telephone) | Mid-level-ontology.kif 25060-25060 | Fixed phone is a subclass of telephone |
(subclass CordedTelephone FixedPhone) | Communications.kif 73-73 | Corded telephone is a subclass of fixed phone |
(subclass CordlessTelephone FixedPhone) | Communications.kif 89-89 | Cordless telephone is a subclass of fixed phone |