[lojban-beginners] lujvo and place structure questions

[omicron@softhome.net]

I have attempted to create a lujvo for the word "activism". I created
sezu'ebi'okulnu (action to change the culture) but someone told me it
isn't correct. Would sezu'ebi'okulnu work instead? 

Also, I found the entry sezga'o with gloss word autistic in the
jbovlaste, having the definition, "x1 is autistic/Aspergian, unable
to understand social behavior x2". I guess this would mean le sezga'o
means an autistic person, and le se sezga'o means a social behavior
that an autistic person might not understand. However, how does one
simply say the word "autism" in lojban? 

Also, the gismu crino means green with definition "x1 is green".
Since le crino means something that fits into the x1 of crino, it
seems like le crino should mean a green object, and not the color
green. How does one say the color green?