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But there is also the problem of insufficient awareness of the potential value of knowledge , so that , as Wu Se-hwa says , Taiwan firms " are sitting on a mountain of gold , but do n't know that they can sell what they know for hard cash . "
 Wu Se-hwa, Taiwan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 Wu Se-hwa, Taiwan