Trained volunteers are collecting baseline data on water quality, and testing for selected suspected contaminants of the coral reef.
Volunteers are testing for contamination around a coral reef, and which doesn't affect the coral reef
( z1 and :op ( z2 test :ARG0 ( z3 person :ARG0-of ( z4 volunteer ) ) :ARG2 ( z5 contaminate :location ( z6 around :op ( z7 reef :mod ( z8 coral ) ) ) ) ) :op ( z9 affect :polarity - :ARG0 z5 :ARG1 z7 ) )