Might I remind you all that sometimes a chair cannot structurally support you.
In how many pages it should be described. Do you want it only in English language. Or do you want translations in other languages also. What should be the font size. Is it sufficient if it is typed in black and white or do you want any color printing. Choose whether it is required in Eastern philosophy or Western philosophy.
to do so with my ego (which is subject to experience) I would say comfortable. To do so with language I would describe appearance. To do so with all my senses I would have to see this chair your talking about, copy my perception, then paste the files to your brain.
A chair is a vessel to hold our body in a certain position and place, as reflected from water in its vessel, which happens to be a jug. If this chair breaks, it leads to consequences. The same with the jug if it breaks. If the chair breaks, our position and posture changes. If the jug breaks, the water is no longer in its position in the jug. This shows that, using the example of a chair and a jug, our bodies are always changing every second of the day. There are never two moments where we can be exactly the same. The ultimate moral: You are what your vessel is. Now reflect that in terms of your physical body and your soul. ;)
Understand that language is merely an artificial bridge forced between an idea and a reality. To communicate is an attempt to bring about understanding of mostly the same idea under a similar set of context. Without much context, the philosophical feature of a chair is frankly quit simple, whatever reference I associate the word chair to is a chair for me. The lack of context leaves an idea in abstract while any given context could limit the association of the idea to specific reality or even eliminate the association from reality completely.
a wonderful invention that supports our bodies while keeping our legs in a comfortable bent position.
