In the mean time the sun had set, and the sky was black with an approaching squall that caused them to watch with some uneasiness for Worth's return.
(the sun; had set; T:the mean time) (the sky; was; black; T:In the mean time) (an approaching squall; caused; them to watch with some uneasiness for Worth's return) Context(an approaching squall caused,List([61, 94))):(them; to watch; with some uneasiness for Worth's return)
an approaching squall caused,List([61, 94))
the sun the sky an approaching squall them
had set was caused to watch
T:the mean time
black T:In the mean time
them to watch with some uneasiness for Worth's return
with some uneasiness for Worth's return