It's not gold or jewels. DAVID LOWRY: Sixteen inches. We have all this land. LARS BRUDVIG: Do you know where we're headed? - eight inches?
The gold and jewels in the topic of mining is referred to in the article.
( z0 refer :ARG0 ( z1 article ) :ARG1 ( z2 and :location ( z3 topic :topic ( z4 mine ) ) :op ( z5 gold ) :op ( z6 diamond ) ) )
(z0 / refer-01
    :ARG0 (z1 / article)
    :ARG1 (z2 / and
              :location (z3 / topic
                            :topic (z4 / mine-01))
              :op1 (z5 / gold)
              :op2 (z6 / diamond)))
The gold and jewels in the topic of mining is referred to in the article .
z2 :op1 z5
z2 :op2 z6
z2 :location z3
z3 :topic z4
z0 :ARG1 z2
z0 :ARG0 z1