9743
Operations research also includes continuous topics such as continuous-time Markov process , continuous-time martingales , process optimization , and continuous and hybrid control theory .
 person: Markov
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Markov