Some chemicals are hazardous because of their physical properties: they can explode, burn or react easily with other chemicals.
(they; burn; ) (they; react easily; with other chemicals) (they; can explode; ) Context(they can explode,List([67, 83))):(Some chemicals; are; hazardous; because of their physical properties)
they can explode,List([67, 83))
they they they Some chemicals
burn react easily can explode are
with other chemicals
hazardous because of their physical properties