6430
A variety of nuclear ribonucleoproteins are believed to associate directly with nascent RNA polymerase II transcripts and remain associated during subsequent nuclear RNA processing reactions , including pre - mRNA polyadenylation and splicing as well as nucleocytoplasmic mRNA transport .
 GENE: RNA polymerase II transcripts
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: RNA polymerase II transcripts 
Answer:
 GENE: RNA polymerase II transcripts