2 sentences for 材料 (cái​liào — potential person)

1. 你是当警探的好材料。

   nǐ shì dāng jǐng​tàn de hǎo cái​liào.

   You'd make a good detective.

   Source: OpenSubtitles

2. 他看样子不是当将军的材料。

   tā kàn​yàng​zi bù shì dāng jiāng​jūn de cái​liào.

   He doesn't look like general material.

   Source: Dong Chinese Dictionary