I'm hip deep into this subject myself. I tried modding TiddlyMap and just now am checking out InfraNodus. When you dig into this, you find there's not a standar

I'm hip deep into this subject myself. I tried modding TiddlyMap and just now am checking out InfraNodus. When you dig into this, you find there's not a standard method because natural language is itself deeply non-standardized. To take one example, a procedure uses the same structure as a ordered list, but a procedure regards the sequence as representing a temporal structure, whereas the ordered list is just using sequence as providing a unique identifier - it doesn't even need numbers or precise intervals. You need NLP to chip out the subject-noun-verb from the ordered list items, or you need an element or role telling you what you are looking at. If someone way more smart than myself could chip in on the subject, that would be pretty dang awesome.