He said the precipitation could start as snow on Thursday, then change over to freezing rain.
(the precipitation; change over; to freezing rain; T:then) (He; said; the precipitation could start as snow on Thursday, then change over to freezing rain) Context(He said,List([0, 7))):(the precipitation; could start; as snow on Thursday)
He said,List([0, 7))
the precipitation He the precipitation
change over said could start
to freezing rain T:then
the precipitation could start as snow on Thursday, then change over to freezing rain
as snow on Thursday