The program spends a great deal of time discussing how archaeologists make inferences from the material they uncover, often using scientific techniques to aide them.
(The program; spends; a great deal of time discussing how archaeologists make inferences from the material they uncover,) (the material; uncover; they)
The program the material
spends uncover
a great deal of time discussing how archaeologists make inferences from the material they uncover,
they