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He came off the bench in the 73rd minute to replace Alex Gilbey , and won his side a penalty in the 87th minute , which was duly converted by Chris Porter to win the game 3 – 2 and turn around a 2 – 1 deficit .
 person: Alex Gilbey; person: Chris Porter
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: Alex Gilbey, Chris Porter 
Answer:
 person: Alex Gilbey; person: Chris Porter