source: [lemma=with] □ □
destination: [lemma=with] □ □ □
spec: The final recipient of the pollution before it is flushed to the ocean are the wetlands at the mouth of the river , which likely have accumulated large quantities of these materials in the sediments and biomass of the wetlands , with unknown impacts on the birds and animals that inhabit the wetlands . And lots of ordinary folk who are just interested in mathematics .