sentence1: the belle detector is a large-solid-angle magnetic spectrometer that consists of a three-layer silicon vertex detector crystals located inside a super-conducting solenoid coil that provides a 1 5 t magnetic field .
sentence2: the belle detector is a large-solid-angle magnetic spectrometer that consists of a three layer silicon vertex detector , a barrel-like array of time-of-flight scintillation counters located inside a superconducting solenoidal coil that provides a 1 5 t magnetic field .