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He became interested in the correlation between human consumption and environmental preservation during his stays at his grandparents ' farm and subsequently got involved with a project for KV Company Inc. using recycled surfboards for building materials : “ Over the past few months , KV has been experimenting with concrete and foam mixtures concocted with surfboards donated to ReRip .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None