{"https://codexery.com/invertebrates/e/part-1/echinoderm/": {"t": "echinoderm", "s": ""}, "https://codexery.com/marine-invertebrates/e/part-1/sea-urchin/": {"t": "sea-urchin", "s": ""}, "https://codexery.com/marine-invertebrates/e/part-1/sea-cucumber/": {"t": "sea-cucumber", "s": ""}, "https://codexery.com/cnidarians/e/part-1/sea-pen/": {"t": "sea-pen", "s": ""}, "https://codexery.com/marine-invertebrates/e/part-1/tunicate/": {"t": "tunicate", "s": ""}, "https://codexery.com/animal-behavior/e/part-1/symbiosis/": {"t": "symbiosis", "s": ""}}