| FootballerUS | | football_player, footballer |
| appearance as argument number 1 |
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| (documentation FootballerUS EnglishLanguage "An athlete who plays American football.") | Sports.kif 249-249 | |
| (instance FootballerUS ProfessionalAthlete) | Sports.kif 248-248 | FootballerUS is an instance of professional athlete |
| antecedent |
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| (=> (attribute ?ATHLETE FootballerUS) (hasSkill Football ?ATHLETE)) |
Sports.kif 294-296 |
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