6264
Six days after ( PhTe ) ( 2 ) injection we found persistent astrogliosis , increased propidium iodide ( PI ) positive cells in NeuN positive population evidenced by flow cytometry and reduced immunofluorescence for NeuN , suggesting that the in vivo exposure to ( PhTe ) ( 2 ) progressed to neuronal death .
 Chemical: ( PhTe ) ( 2 ); Chemical: propidium iodide; Chemical: ( PhTe ) ( 2 )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: ( PhTe ) ( 2 ); Chemical: propidium iodide; Chemical: ( PhTe ) ( 2 )