With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tardigrades are also known as something.
text_B: The Shantou-class gunboat was a Chinese-built gunboat of the People 's Republic of China 's People 's Liberation Army Navy .. gunboat. gunboat. Known in the United States as the `` Swatow '' class gunboat , it was based on the Soviet P-6 class torpedo boat .. gunboat. gunboat. P-6 class torpedo boat. P-6 class torpedo boat. The boat is designated as Type 55A -LRB- 55 Jia Xing , 55甲型 -RRB- .. Instead of being wooden hulled , and having torpedoes as the main armament , the Shantou class is steel-hulled , with guns as the main armament .. steel. steel. hulled. hulled. The Shantou -LRB- or Swatow -RRB- is the predecessor of the Type 062 class gunboat , or more commonly known as the Shanghai-I & II class .. gunboat. gunboat. Type 062 class gunboat. Type 062 class gunboat
not_related.