Complex sentence: The earliest extant mention of tea in literature is in the Shih Ching or Book of Changes, written circa 550 BCE, although the ideogram used (Tu) in these texts can also designate a variety of plants, such as sowthistle and thrush.
Split into simpler sentences: The earliest extant mention of tea in literature is in the Shih Ching or Book of Changes, written circa 550 BCE. Although the ideogram used (Tu) in these texts can also designate a variety of plants, such as sowthistle and thrush.