tūn mǐ sāng bù zhá
Tunmi Sanghuzha (6th century AD), originator of the Tibetan script
吞
tūn
to swallow
米
mǐ
uncooked rice
桑
sāng
(bound form) mulberry tree
布
bù
cloth
札
zhá
thin piece of wood used a writing tablet (in ancient China)