Assertion: photochemical smog | /r/AtLocation | urban areas
Facets:
value: most prominently
type: MANNER
Source sentences:
text: Photochemical smog, which is also known as “Los Angeles smog,” occurs most prominently in urban areas that have large numbers of automobiles, and it requires neither smoke nor fog.
text: Photochemical smog, which is also known as “Los Angeles smog,” occurs most prominently in urban areas that have large numbers of automobiles.