At 9:32, a third radio transmission came over the Keep remaining sitting.
( ( At 9:32 ) ( , ( ( a ( third ( radio transmission ) ) ) ( ( came ( over ( ( the ( Keep remaining ) ) sitting ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (CD 9:32))) (, ,) (NP (DT a) (JJ third) (NN radio) (NN transmission)) (VP (VBD came) (PP (IN over) (NP (NP (DT the) (JJ Keep) (VBG remaining)) (VP (VBG sitting))))) (. .)))
This transmission was abnormal for the situation at hand.  
( ( This transmission ) ( ( ( was ( abnormal ( for ( the situation ) ) ) ) ( at hand ) ) . ) )
(ROOT (S (NP (DT This) (NN transmission)) (VP (VBD was) (ADJP (JJ abnormal) (PP (IN for) (NP (DT the) (NN situation)))) (PP (IN at) (NP (NN hand)))) (. .)))