 
 <translate> Answer the following question, but give the rationale first. Has categories of Nobel prizes remained same since Alfred Nobel established them? <ibo> Zaa ajụjụ na-esonụ, ma buru ụzọ kwuo ihe mere i ji kwuo otú ahụ. Ọ̀ bụ otu ihe ahụ ka e ji onyinye Nobel eme kemgbe Alfred Nobel malitere inye ya? 