Umusemburo uzingiye uhabwa umutwaro wo kuzingwa, atari uko ukandamizwa cyangwa ukururwa: amaguru abiri agororotse azengurutswa hafi y'umurongo w'impeta, kandi n'ubwo izina rivuga kuzinga, insinga ikora ku igorama, atari ku izinga. Igomba kuzingwa mu cyerekezo GIFUNGA impeta iyo ihawe umutwaro, kandi ikeneye igiti cyangwa umurongo imbere, kuko ubugari bw'impeta bugabanuka uko izingwa. Imisemburo nyayo itandukanye ku bugari bw'insinga, ubugari bw'impeta, umubare w'impeta, n'uburebure bw'amaguru.