Their actions saved the lives of countless others, and may have saved either the Capitol or the White House from destruction.
( ( Their actions ) ( ( ( ( ( saved ( ( the lives ) ( of ( countless others ) ) ) ) , ) and ) ( may ( have ( ( saved ( either ( ( ( the Capitol ) or ) ( the ( White House ) ) ) ) ) ( from destruction ) ) ) ) ) . ) )
(ROOT (S (NP (PRP$ Their) (NNS actions)) (VP (VP (VBD saved) (NP (NP (DT the) (NNS lives)) (PP (IN of) (NP (JJ countless) (NNS others))))) (, ,) (CC and) (VP (MD may) (VP (VB have) (VP (VBN saved) (PP (CC either) (NP (NP (DT the) (NNP Capitol)) (CC or) (NP (DT the) (NNP White) (NNP House)))) (PP (IN from) (NP (NN destruction))))))) (. .)))
The could have saved more lives with more action.
( The ( ( could ( have ( ( saved ( more lives ) ) ( with ( more action ) ) ) ) ) . ) )
(ROOT (S (NP (NNP The)) (VP (MD could) (VP (VB have) (VP (VBN saved) (NP (JJR more) (NNS lives)) (PP (IN with) (NP (JJR more) (NN action)))))) (. .)))