I Chinghexagram 47, depicted :|:||: is named 困 (kun4), Confining. Other translations: R. Wilhelm/C. Baynes, Oppression (Exhaustion); E. Shaughnessy (Mawangdui), Entangled.
Inner (lower) trigram is ☵ (:|: 坎 kan3) Gorge = (水) water
Outer (upper) trigram is ☱ (||: 兌 dui4) Open = (澤) swamp