1178
It contains a basic helix-loop-helix ( bHLH ) motif contiguous with a Per-Arnt-Sim (PAS) homology region .
 protein: basic helix-loop-helix ( bHLH ) motif; protein: bHLH; protein: Per-Arnt-Sim (PAS) homology region; protein: helix-loop-helix
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: basic helix-loop-helix ( bHLH ) motif, bHLH, Per-Arnt-Sim (PAS) homology region, helix-loop-helix 
Answer:
 protein: basic helix-loop-helix ( bHLH ) motif; protein: bHLH; protein: Per-Arnt-Sim (PAS) homology region; protein: helix-loop-helix