Task: Text Categorization
Input (English): phylum may contain the extinct conulata, which may also belongs to its own phylum. This phylum is now thought to include Myxoza and Polypodiozoa, a parasite found in sturgeons' eggs. This phylum contains the class cubazoa, whose members move with a contractile tissue called velarium. Most members of this phylum have bodies made of mesoglea. Its members, like the sea wasp and sea pen, develop nematocysts, cells that fire a bulb-shaped projection on the end of a cord and deliver a toxic injection to prey. They go through polyp and medusa phases. For 10 points, name this phylum that contains stinging animals like anemone and jellyfish.
Output (English): Science