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Immunisation with fully synthetic three - component vaccines induced immune reactions with therapeutic effects in terms of reduction of the tumour burden in mice or in killing of tumour cells in culture , while MUC1 glycopeptide - Tetanus toxoid vaccines elicited antibodies in mice which recognised tumour cells in human tumour tissues .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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