With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The United Kingdom was not the world's foremost power.
text_B: Coulometry is the name given to a group of techniques in analytical chemistry that determine the amount of matter transformed during an electrolysis reaction by measuring the amount of electricity -LRB- in coulombs -RRB- consumed or produced .. analytical chemistry. electroanalytical method. electrolysis. electrolysis. electricity. electricity. It is named after Charles-Augustin de Coulomb .. Charles-Augustin de Coulomb. Charles-Augustin de Coulomb. There are two basic categories of coulometric techniques .. Potentiostatic coulometry involves holding the electric potential constant during the reaction using a potentiostat .. electric potential. electric potential. potentiostat. potentiostat. The other , called coulometric titration or amperostatic coulometry , keeps the current -LRB- measured in amperes -RRB- constant using an amperostat .. current. current ( electricity ). amperostat. amperostat
not_related.