here adverb, you personal pronouncan modalsee verb, base formsome determinernematocysts proper noun, singularthat wh-determinerwere verb, past tensedischarged verb, past participleby preposition or subordinating conjunctiona determinerhydra noun, singular or mass, which wh-determinerhappened verb, past tensedue adjective
before adverb, and coordinating conjunctionwe personal pronouncan modaleven adverbmake verb, base formout preposition or subordinating conjunctionthe determinerspecial adjectivevesicles noun, pluralinside preposition or subordinating conjunctionof preposition or subordinating conjunctionthem personal pronouncalled verb, past tensenematocysts proper noun, singular,