3 sentences

1. 五味包括酸、苦、甘、辛、咸。

   wǔ​wèi bāo​kuò suān, kǔ, gān, xīn, xián.

   The five flavors include sour, bitter, sweet, pungent, and salty.

   Source: Dong Chinese Dictionary

2. 辛是天干的第八位。

   xīn shì tiān​gān de dì​bā wèi.

   Xin is the eighth of the ten Heavenly Stems.

   Source: Dong Chinese Dictionary

3. 他深感创业之辛，却从未放弃。

   tā shēn​gǎn chuàng​yè zhī xīn, què cóng​wèi fàng​qì.

   He felt deeply the hardships of starting a business, but he never gave up.

   Source: Dong Chinese Dictionary