Assertion: thunderstorm | /r/MadeOf | many convection cells
Facets:
Source sentences:
text: : Some thunderstorms are made from many convection cells moving as a single unit.
text: : Some thunderstorms are made from many convection cells moving as a single unit.
text: Some thunderstorms are made from many convection cells moving as a single unit.
text: Some thunderstorms are made from many convection cells moving as a single unit.