[lojban-beginners] Question about jbovlaste

[Yoav Nir <yoav.nir@gmail.com>]

coi rodo

jbovlaste has a distinction between "preferred only" valsi and "all"  
valsi.  There are, for example, 339 preferred works starting with 'c'  
but 598 words in general that start with 'c'.

I have two questions:

1. What is the difference.
2. The XML export seems to export only the preferred words. How can I  
get an export of all words?