Excel formula If A is true then check B and if B is negative then return

Hi,

I am looking for a little support,
i am making this list, where i need a formula that goes like this

IF cell F is Low then check for a negative number in cell E and if yes then mark cell G "OK"
IF cell F is low but a positive number then mark cell G "negative"

and
IF cell F is High but a positive number in cell E then mark cell G "OK"
IF cell F is High then check for a negative number and if yes then mark cell G "Negative

Software.xlsx"