！contend的名词是contention，n. 看法，观点争论，争吵争夺，竞争

形容词是contentious，adj. 有争议的，引起争论的爱争论的，好争吵的

副词是contentiously，adv. 有异议的好争吵的爱争论的

All this has taken a long time to organise because assets had to be valued and， most contentiously， shareholders identified.