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The mass spectrum of compound 5 displays its molecular ion 5a with the typical isotope pattern [ 18 ] of a pentachlorinated compound at m / z 448 ( relative abundance , 15 % ) ( Figure 2 ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
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