With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The American Broadcasting Company is the biggest television network.
text_B: Gadimyxa atlantica is a species of parasitic myxozoan .. Gadimyxa. Gadimyxa. Together with G. arctica and G. sphaerica , they infect Gadus morhua and Arctogadus glacialis by developing coelozoically in bisporic plasmodia in their urinary systems .. G. arctica. Gadimyxa arctica. G. sphaerica. Gadimyxa sphaerica. Gadus morhua. Gadus morhua. Arctogadus glacialis. Arctogadus glacialis. bisporic. spore. plasmodia. plasmodium. These 3 species ' spores exhibit two morphological forms  : wide and subspherical , being both types bilaterally symmetrical along the suture line .. bilaterally. Bilateral symmetry. suture. Suture ( anatomy ). The wide spores have a mean width ranging from 7.5-10 μm , respectively , while the subspherical ones range from 5.3-8 μm in mean width .. micrometre. The subspherical forms of Gadimyxa are similar to Ortholinea , differing in the development of the spores and in the arrangement of the polar capsules .. Gadimyxa. Gadimyxa. Ortholinea. Ortholinea. Polychaetes Spirorbisspecies act as invertebrate hosts of G. atlantica .. Polychaetes. Polychaeta. invertebrate. invertebrate. hosts. Host ( biology )
not_related.