It's not gold or jewels. But as time passed, those in charge extended the span between digs to 10 years, then 20.  Teachers, watch our on-demand webinar to learn how to use this feature in your classroom. FRANK TELEWSKI: Yep. NPR transcripts are created on a rush deadline by an NPR contractor.
Most students can dig at least far below the surface of the gold.
( z0 possible :ARG1 ( z1 dig :ARG0 ( z2 person :ARG0-of ( z3 study ) :mod ( z4 most ) ) :ARG2 ( z5 below :quant ( z6 at-least :op ( z7 far ) ) :op ( z8 surface :mod ( z9 gold ) ) ) ) )
(z0 / possible-01
    :ARG1 (z1 / dig-01
              :ARG0 (z2 / person
                        :ARG0-of (z3 / study-01)
                        :mod (z4 / most))
              :ARG2 (z5 / below
                        :quant (z6 / at-least
                                   :op1 (z7 / far))
                        :op1 (z8 / surface
                                 :mod (z9 / gold)))))
Most students can dig at least far below the surface of the gold .
z2 :mod z4
z2 :ARG0-of z3
z0 :ARG1 z1
z1 :ARG0 z2
z6 :op1 z7
z5 :quant z6
z1 :ARG2 z5
z5 :op1 z8
z8 :mod z9