While the young man was making his extracts from Borough minutes, however, the sun had melted some of the snow, which froze into glare ice as soon as the solar heat had diminished with the declining day.
(the young man; was making; his extracts; from Borough minutes) (the sun; had melted; some of the snow; T:While the young man was making his extracts from Borough minutes) (the snow; froze; into glare ice; T:as soon as the solar heat had diminished with the declining day) (the solar heat; had diminished; T:with the declining day)
the young man the sun the snow the solar heat
was making had melted froze had diminished
his extracts from Borough minutes
some of the snow T:While the young man was making his extracts from Borough minutes
into glare ice T:as soon as the solar heat had diminished with the declining day
T:with the declining day