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It is unclear what exactly triggered the sitsutation.
( z0 clear :ARG1 ( z1 thing :ARG0-of ( z2 trigger :ARG1 ( z3 situation ) ) :mod ( z4 exact ) ) :polarity - )
(z0 / clear-06
    :ARG1 (z1 / thing
              :ARG0-of (z2 / trigger-01
                           :ARG1 (z3 / situation))
              :mod (z4 / exact))
    :polarity -)
It is unclear what exactly triggered the sitsutation .
z0 :polarity 0
z0 :ARG1 z1
z1 :mod z4
z1 :ARG0-of z2
z2 :ARG1 z3