Vocabulary consisting only from characters you are able to read
練る
neru
(1)to knead, to work over, (2)to polish up (e.g. a plan), (3)to drill, to train godan, verb, vtrans
に関して
nikanshite
related to, in relation tomix
億
oku
(num) 100,000,000, hundred millionjlpt4
談ずる
danzuru
(1)to talk, to discuss, to debate, (2)to negotiate vtrans
類
tagui
(1)kind, sort, type, (2)equal, match, peer; kind, sort, class, family, genus mix
課題
kadai
subject/theme/task/challenge/issue/matter/(P)jlpt3, leda1