かね
kane

Particle

1. interrogative sentence-ending particle expressing doubt

世界 せかい てき過大 かだい評価 ひょうかされた中国 ちゅうごく しょといえば、『孫子 まごこ』ですかね。
sekaitekini kadaini hyōka sareta chūgokushoto ieba 'magoko'desukane.
When it comes to Chinese books that are overvalued worldwide I suppose it's Sun Tzu, isn't it?