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Protein-DNA binding studies suggested that Sp1 and two other CCGCCC binding proteins from erythroid and non-erythroid cells could bind to the Sp1 binding motif .
 DNA: Sp1 binding motif; protein: CCGCCC binding proteins; protein: Sp1; protein: Sp1
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: Sp1 binding motif, CCGCCC binding proteins, Sp1, Sp1 
Answer:
 DNA: Sp1 binding motif; protein: CCGCCC binding proteins; protein: Sp1; protein: Sp1