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Furthermore , a single Tg recorded in all samples , indicating that Tibolone was dispersed in a molecular lever ( or in the form of nanodispersions ) , varied with varying PEG ' s molecular weight , melt mixing temperature , and drug content , while FTIR analysis indicated significant interactions between Tibolone and PVP / PEG matrices .
 Chemical: Tibolone; Chemical: PEG; Chemical: Tibolone; Chemical: PVP; Chemical: PEG
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: Tibolone; Chemical: PEG; Chemical: Tibolone; Chemical: PVP; Chemical: PEG