I am searching for a Database containing a hierarchical Ontology of most objects.
For example, an Apple is a special type of an edible Fruit, which is a special type of Fruit. A Fruit is a physical Object and therefore has a volume, weight, smell etc.
I have found some openly available Ontological Databases, like dbpedia, but extracting the hierarchical Information is non-trivial.
Has anyone worked with similar Databases and is able to recommend something similar?