''Óriginal parts'', ''identity '' and ''retip'' conundrum

The ''identity enigma'' is easy to explain with ''ownership''. Not everyone is familiar with logic or philosophy but everyone owns something or other.

Ownership assume ''one to one relation'' between an person (legal

bodies included) and one object of ownership. Think of question how

you can prove to own some object. You can also think about question

how to prove to be owner of, say an part of your stolen car.

What the ''force'' of the expression ''original'' is , is an enigma.

However Americans are typical example of   people who are very

fond of ''original parts'' and willing to pay huge amount of money

for the ''precious'' (grin). By the so called ''retips'' the assumption

is also ''original'' versus ''not original parts''. This means that 

every manufacturer as well ''retiper'' uses his own styli and or

cantilevers. The fact however is that they all buy those ''parts''

by either by Namiki or Ogura. So, logicaly speaking, the origin

of those ''parts'' are either Namiki or Ogura. Is gluing an cantilever/

stylus combo in the ''joint pipe'' rocket science?