If 2 dice are rolled find the probability of rolling the following event: a sum of five given that the sum was lesser than 4

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'given that the sum was lesser than 4' makes no sense to me.

How many ways can the dice get 5?
How many ways can each die land (how many sides are there) and how many for two?
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This is like asking what's the probability of flipping a coin and getting heads, given that it came up tails.