The most recent test for Lincolnshire came in May 1996, when unusually heavy rains quickly raised the river to flood stage.
(The most recent test for Lincolnshire; came; T:in May 1996) (unusually heavy rains; quickly raised; the river; to flood stage)
The most recent test for Lincolnshire unusually heavy rains
came quickly raised
T:in May 1996
the river to flood stage