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In the event , it was William Wailes who undertook this in 1857 , having already begun the four windows of the octagon , as well as contributions to the south west transept , south aisle and north transept .
 person: William Wailes
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: William Wailes 
Answer:
 person: William Wailes