 Dadkii hurdada seexday ee suaashaas la waydiiyey waxay ka xusuus fiicnaadeen kuwii iyagoo aan seexan jawaabta la waydiiyey, waxaanay cilmi-badhayaashu soo jeediyeen in ardayda ay u fiican tahay waqtiyada imtixaannada in ay akhriska kadib hurdo fiican seexdaan si ay suaalaha iyo macluumaadka la waydiiyo uga jawabaan. 