Wind is simply air in motion. It is caused by the uneven heating of the Earthâs surface by the sun. Because the Earthâs surface is made of very different types of land and water, it absorbs the sunâs heat at different rates. One example of this uneven heating can be found in the daily wind cycle.
The OWL Web Ontology Language is designed for use by applications that need to process the content of information instead of just presenting information to humans. The OWL Web Ontology Language Test Cases document contains a large set of test cases for the language; 2  The OWL Use Cases and Requirements document contains a set of use cases for a web ontology language and compiles a set of requirements for OWL.
Both the existence and reality of abstractions are in dispute: one extreme position regards them as mere words; another position regards them as higher truths than less abstract concepts.This disagreement is the basis of the philosophical problem of universals.n the one hand, ontology is the study of being, and the central topic of the field is couched, variously, in terms of being, existence, what is, and reality. The task in ontology is to describe the most general categories of reality and how they are interrelated.