For example, a chemical that lowers the freezing point of water is uniformly spread across the pavement just before, or just as, the first snowflakes begin to fall.
(a chemical; lowers; the freezing point of water) (a chemical that lowers the freezing point of water; is uniformly spread; L:across the pavement; T:just before) (the first snowflakes; to fall; )
a chemical a chemical that lowers the freezing point of water the first snowflakes
lowers is uniformly spread to fall
the freezing point of water
L:across the pavement T:just before