Assertion: lightning | /r/HasProperty | a flow of electrons
Facets:
value: between the earth
type: LOCATION
value: between the atmosphere
type: LOCATION
Source sentences:
text: Lightning is a flow of electrons (a negative charge) that zigzags downward in a forked shaped pattern (scientists call this a step leader).
text: Lightning is a flow of electrons between the earth and the atmosphere, and thunder is the sound made when those electrons interact with the surrounding air.