Bullshit. For something to be property, it requires a claim of ownership. For something to be ABLE to be property is has to possess characteristics which enable the establishment of ownership. The first requires the second to be true - not the other way around. These are two disjunct propositions.

Otherwise I must conclude that you - as a person - are property. Now - you may say to this is correct and you own yourself. However, the term property only makes sense in a relational manner. Thus a property belonging to itself doesn't make any sense.
Also the association of people with property is kind of outlawed in modern society which abandoned slavery. Apparently some societies eventually decided that there are certain things which SHOULD NOT be claimable as property.