sentence2_structure: Nematodes<>can be<>a parasite of both
sentence1: This probably remains true despite the fact that nematodes as a group are of great economic importance (chiefly as parasites and pests of both plants and animals) and are extensively used in scientific research.
sentence2: Nematodes can be a parasite of both.
question: Can nematodes be a parasite of plants, animals, or both?