It was emissions from a tall stack, and the 22 prevailing wind direction varied from season to 23 season, and so depending on which way the wind was 24 blowing, the contaminants were going to be blowing in 25 a different direction.
(It; was; emissions from a tall stack) (the contaminants; to be blowing; T:in 25; a different direction)
It the contaminants
was to be blowing
emissions from a tall stack
T:in 25 a different direction