with the precision of the insurance actuary 
(ROOT (PP (IN with) (NP (NP (DT the) (NN precision)) (PP (IN of) (NP (DT the) (NN insurance) (NN actuary))))))
(ROOT (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NN ) (NN ))))))