Petition
noun, verbal noun, の adjective
せいがん
請願 (せいがん) Petition
陳情 (ちんじょう) Petition, Appeal
請求 (せいきゅう) Demand, Claim, Request, Charge
Carl Sagan せいがん Petitioned to save the stars.
They say せい Gandhi がん Petitioned for non-violent resistance.