Most sinkholes are caused by limestone being eroded by underground water, leaving caverns that eventually collapse under the weight of their roofs.
(Most sinkholes; are caused; by limestone) (limestone; being eroded; by underground water) (caverns; collapse; L:under the weight of their roofs; T:eventually)
Most sinkholes limestone caverns
are caused being eroded collapse
by limestone
by underground water
L:under the weight of their roofs T:eventually