286922
Valence bond ( VB ) computer programs for modern valence bond calculations : - Note that several other programs , as well as some of those above , can do Goddard 's Generalized Valence Bond ( GVB ) methods .
 Goddard 's
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Goddard 's