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Batting pads had been proposed much earlier , particularly by Robert Robinson , but it was not until the horrific leg injury suffered by Alfred Mynn in 1836 from a ball by Sam Redgate that pads were seen as an essential item of equipment .
 person: Robert Robinson; person: Alfred Mynn; person: Sam Redgate
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: Robert Robinson, Alfred Mynn, Sam Redgate 
Answer:
 person: Robert Robinson; person: Alfred Mynn; person: Sam Redgate