3 sentences

1. 这块肉太艮了，嚼不动。

   zhèi kuài ròu tài gěn le, jiáo bù dòng.

   This meat is too tough to chew.

   Source: Dong Chinese Dictionary

2. 他说话太艮了。

   tā shuō​huà tài gěn le.

   He speaks too bluntly.

   Source: Dong Chinese Dictionary

3. 艮卦在八卦中代表山，象征着稳重。

   gèn guà zài bā​guà zhōng dài​biǎo shān, xiàng​zhēng zhe wěn​zhòng.

   The 'Gen' trigram in the Eight Trigrams represents a mountain, symbolizing stability.

   Source: Dong Chinese Dictionary