- From: Frank Manola <fmanola@acm.org>
- Date: Thu, 09 Sep 2010 10:58:05 -0400
- To: Barry Norton <barry.norton@aifb.uni-karlsruhe.de>
- Cc: Pat Hayes <phayes@ihmc.us>, Michael F Uschold <uschold@gmail.com>, Martin Hepp <martin.hepp@ebusiness-unibw.org>, semantic-web@w3.org
On Sep 9, 2010, at 3:12 AM, Barry Norton wrote: > On 09/09/10 06:09, Pat Hayes wrote: >> >> Um... don't the (natural) categories of powered boat, sailboat and rowboat capture the needed distinctions here quite adequately? I have no idea whether a kayak is usually called a rowing boat, but it clearly belongs in a natural class of boats propelled by arm muscles holding a paddle or oar. BTW, there are, or once were, sea-going ships in all these three categories. >> >> > > No, rowing and paddling are two completely different actions, though I have some sympathy for a properly named class for "natural class of boats propelled by arm muscles holding a paddle or oar" (as long as this isn't called rowing). For completeness, don't leave out "boats propelled by arm muscles holding a pole", as in punts (which you can find for sale) or the old-time keelboats (not likely to be a major article in commerce today). --Frank
Received on Thursday, 9 September 2010 14:58:57 UTC