6599
Leonor Michaelis and Maud Menten assumed that enzyme ( catalyst ) and substrate ( reactant ) are in fast equilibrium with their complex , which then dissociates to yield product and free enzyme .
 person: Leonor Michaelis; person: Maud Menten
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: Leonor Michaelis; person: Maud Menten