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posted by [personal profile] ptc24 at 03:44pm on 05/12/2010
There's a classic example sentence he has, "Colourless[1] green ideas sleep furiously", which he holds up as an example of grammatical gibberish, and the contrasting "furiously sleep ideas green colourless", which is an example of ungrammatical gibberish. The difference between nonsense and word salad, if you like.

However, I've realised that you can add punctuation, and get "Furiously sleep ideas green, Colourless!", which is grammatical, and you could even imaging a hypothetical scenario for it. That scenario would probably be an MMO, a bit like World of Warcraft. The interpretation goes as follows:

"sleep" has a transitive sense, meaning "to cast a sleep spell on". Once you know this it's obvious that the sentence is an imperative sentence, and everything else falls into place quite quickly. To sleep ideas green is presumably to repeatedly cast the sleep spell on the ideas (presumably mobs called "ideas" - stranger things exist in WoW) until they turn green - after all, you can shout yourself hoarse. Presumably this is best done in a furious manner. And, well, people can have all sorts of bonkers handles in MMOs, so Colourless is not nearly as crazy as some I've seen.

In fact this all feels less strained than coming up with a good scenario for the allegedly more grammatical reverse statement.

[1] This was probably actually "colorless", but whatever...
There are 5 comments on this entry. (Reply.)
 
posted by [identity profile] vyvyan.livejournal.com at 03:59pm on 05/12/2010
I presume you've seen this one before:

It can only be the thought of verdure to come, which prompts us in the autumn to buy these dormant white lumps of vegetable matter covered by a brown papery skin, and lovingly to plant them and care for them. It is a marvel to me that under this cover they are labouring unseen at such a rate within to give us the sudden awesome beauty of spring flowering bulbs. While winter reigns the earth reposes but these colourless green ideas sleep furiously.

C. M. Street
ptc24: (Default)
posted by [personal profile] ptc24 at 07:18pm on 05/12/2010
No, I hadn't, it's a good one!
jack: (Default)
posted by [personal profile] jack at 12:26pm on 06/12/2010
ROFL. That's great. I love Peter's too, although I'm hardly surprised that with one or two new coinages almost any nonsense can be made (just) grammatical :)
ptc24: (Default)
posted by [personal profile] ptc24 at 12:58pm on 06/12/2010
The example I gave is pretty extreme, but it's a good example of why natural language parsing is a difficult problem. The ability to strain interpretations from sentences isn't just limited to nonsensical sentences, it works for perfectly good sentences too. You can seriously narrow down the number of possible parses for a sentence by actually having and enforcing a grammar, but even then you often get thousands of legal parses for a typical long sentence, and there are few hard-and-fast rules for selecting the correct one - basically, you need world knowledge to be sure, and that problem is AI-complete. The problem is sufficiently severe that in some cases humans can't do it if they lack sufficient knowledge of the subject matter - an issue we came up against when we got a trained linguist (who wasn't a chemist) to make parse trees for sentences from chemistry papers.
holdthesky: (Default)
posted by [personal profile] holdthesky at 01:39am on 31/08/2011
A different issue, but...

Just pronouncing most systematic names needs quite a good knowledge of chemistry. I guess that's working out the morphology, mainly, finding the stems and the prefixes and stuff, that stumps people when pronouncing things like "perfluorooctanoate" that it's hard to understand how people can get wrong when you're used to it.

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