[pm#graph1_on_food_or_beverage
     [any #food_or_beverage (^$(no inheritance)$^),
          pm#substance of: a #food_or_beverage,
          pm#substance: a #food_or_beverage,
          #monetary_value: a #monetary_value,
          pm#spatial_origin: a #region,
          may be pm#object/result of (^$(explore)$^): a pm#process]
];