很遗憾，yes 和no就可以当名词。也就是可以当宾语。
以下引自词典：
N-COUNT A no is a person who has answered "no" to a question or who has voted against something. No is also used to refer to their answer or vote. 作否定回答者; 投反对票者; 否定回答。
yes: n. 是（表示肯定）
以下引自金山词霸：
no 用作名词 (n.)
It's time for us to say "No" to America.是我们对美国说不的时候了。
A mature person should learn to say 'No'.一个成熟的人应该知道拒绝别人。
yse用作名词 (n.)
Answer yes or no.回答是或者不是。
Did he give a yes or a no to your idea?他对你的想法表示赞成还是反对?