Sediments are deposited horizontally so sedimentary rock layers are originally horizontal.
(Sediments; are deposited horizontally; ) Context(Sediments are deposited horizontally,List([0, 36))):(so sedimentary rock layers; are; originally horizontal)
Sediments are deposited horizontally,List([0, 36))
Sediments so sedimentary rock layers
are deposited horizontally are
originally horizontal