protected boolean accepts(TokenStream stream) {
    	            Token token = null;
    	            
    	            // Skipping past commas and semi-colons which leaked through to the parser.
    	            do  {
    	                token = stream.nextToken();
    	            } while (token != null && (token.getText().equals(",") || token.getText().equals(";")));
    	
    	            if (token != null
    	                    && token.hasTag(SyntacticTag.CHARACTER_STRING)
    	                    && isLevelNumber(token.getText())) {
    	
    	                returnToken(token);
    	                return true;
    	
    	            } else
    	                return false;
    	        }