lawa - head, mind; to control, direct, guide, lead, own, plan, regulate, rule
kulupu - community, company, group, nation, society, tribe
nasa - unusual, strange; silly; drunk, intoxicated
a - (emphasis, emotion, or confirmation)
a is an emotion particle! you can put it after a word or a sentence to intensify or emphasize what came before it.
put on its own it means something like ah, oh!, or some other emotion sound, and several as in a row often means laughter.
a a a
a sina sona pona
~ ah, you know well
sina wawa a
~ you're so strong!
my head is warm
the government of the US is bad
hahaha your jokes are funny
everything gets strange sometimes
a mi sona ala e ni
kulupu ni li pona mute a
sina pona a
a ijo mute pi sona mute li lon kulupu ni