Then these sedimentary rocks are buried, subjected to heat, pressure, and fluids, and become metamorphic rocks.
(these sedimentary rocks; are buried; subjected to heat, pressure; T:Then) (these sedimentary rocks; subjected; to heat, pressure) (these sedimentary rocks; become; metamorphic rocks)
these sedimentary rocks these sedimentary rocks these sedimentary rocks
are buried subjected become
subjected to heat, pressure T:Then
to heat, pressure
metamorphic rocks