If toxic waste containg cyanide is not disposed of properly, it may drain into ponds, streams, sewers, and reservoirs.
Improperly disposed cyanide could possibly go into reservoirs
( z1 possible :ARG1 ( z2 go :ARG1 ( z3 cyanide :ARG1-of ( z4 dispose :manner ( z5 inadequate ) ) ) :ARG4 ( z6 reservoir ) ) )