private void setUnderlyingObject(Object underlyingObject) {
		this.underlyingObject = underlyingObject;
		if(underlyingObject instanceof Operation) {
			
			if(((Operation) underlyingObject).getTokenType()==TokenType.NEGATOR) {
				
				this.setType(TokenType.NEGATOR);
			} else {
				
				this.setType(TokenType.OPERATION);
			}
		}
	}