Assertion: bullet | /r/HasProperty | fired through the barrel of a gun
Facets:
value: each time
type: TEMPORAL
value: like the colt python
type: OTHER
Source sentences:
text: Each time a bullet is fired through the barrel of a gun, like the Colt Python, it becomes imprinted with grooves and microscopic imperfections — markings as specific to a gun as fingerprints to a person, he said.