neither... nor/RelEx

Example : "I could use neither the lorry nor the van. " 
 		 	 _to-do(could, use) 
    			_quantity(lorry, neither) 
    			_det(lorry, neither) 
  		 	conj_nor(lorry, van) 
    			_obj(use, lorry) 
    			_obj(use, van) 
   			 _subj(use, I) 
I'm not sure if "neither.. nor" has the same meaning as "nor", it seems there're some slightly logical difference. And if we consider "neither..nor" as a conjunction, using _advmod(***, neither) seems wrong...

Anyway, my suggestion for using "conj_neither_nor" came up with distinguishing "either..or" from "or" by not using "conj_or" for both, ie. using "conj_either_or" for "either...or"