Assertion: cold front | /r/HasProperty | preceded by dry lines
Facets:
value: on occasion
type: TEMPORAL
Source sentences:
text: Cold fronts may feature narrow bands of thunderstorms and severe weather, and may on occasion be preceded by squall lines or dry lines.
text: Cold fronts may feature narrow bands of thunderstorms and severe weather, and may on occasion be preceded by squall lines or dry lines.