9997
Each resource is utilized in different ways , for example , water can be used to give units a speed boost in battle , as well as act as a healing base for Hai-Genti units , and as a staple requirement for researching upgrades .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None