With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Extracorporeal shockwave therapy (ESWT) is used in urology.
text_B: Extracorporeal shockwave therapy -LRB- ESWT -RRB- is a treatment used in physical therapy , orthopedics , urology and cardiology .. physical therapy. physical therapy. orthopedics. orthopedics. urology. urology. cardiology. cardiology. The shock waves are abrupt , high amplitude pulses of mechanical energy , similar to soundwaves , generated by an electromagnetic coil or a spark in water .. shock waves. shock waves. Similar technology using focused higher energies is used to break up kidney and gallstones , and is termed lithotripsy .. lithotripsy. lithotripsy. `` Extracorporeal '' means that the shockwaves are generated externally to the body and transmitted from a pad through the skin .
related.