19194
Transmission - mode direct analysis in real time ionization coupled with high resolution mass spectrometry ( TM - DART - HRMS ) was used to monitor chemical changes in various vegetable oils ( olive , rapeseed , soybean and sunflower oil ) during their thermally - induced oxidation .
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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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