10183
A " Lewis acid " is a species that accepts a pair of electrons from another species ; in other words , it is an electron pair acceptor. , gives up an electron pair to boron trifluoride to form the product tetrafluoroborate .
 Lewis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Lewis