( ( At ( the ( same time ) ) ) ( , ( we ( ( ( ( would , ) ( of course ) ) ( be ( ( ( ( ( trying ( to ( stretch ( ( the ( limited ( public resources ) ) ) ( to ( attend ( to ( ( the improvement ) ( of ( the ( rural roads ) ) ) ) ) ) ) ) ) ) ) , ) ( increasing ( ( the number ) ( of ( ambulances ( available ( to ( the ( rural hospital ) ) ) ) ) ) ) ) ) and ) ( increasing ( ( the quality ) ( of ( ( medical personnel ) ( working ( at ( the ( district hospital ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (DT the) (JJ same) (NN time))) (, ,) (NP (PRP we)) (VP (MD would) (, ,) (PP (IN of) (NP (NN course))) (VP (VB be) (VP (VP (VBG trying) (S (VP (TO to) (VP (VB stretch) (S (NP (DT the) (JJ limited) (JJ public) (NNS resources)) (VP (TO to) (VP (VB attend) (PP (TO to) (NP (NP (DT the) (NN improvement)) (PP (IN of) (NP (DT the) (JJ rural) (NNS roads)))))))))))) (, ,) (VP (VBG increasing) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NP (NNS ambulances)) (ADJP (JJ available) (PP (TO to) (NP (DT the) (JJ rural) (NN hospital)))))))) (CC and) (VP (VBG increasing) (NP (NP (DT the) (NN quality)) (PP (IN of) (NP (NP (JJ medical) (NNS personnel)) (VP (VBG working) (PP (IN at) (NP (DT the) (NN district) (NN hospital))))))))))) (. .)))
At the same time, we would, of course be trying to stretch the limited public resources to attend to the improvement of the rural roads, increasing the number of ambulances available  to the rural hospital and increasing the quality of medical personnel working at the district hospital.
(ROOT (S (S (VP (VBG Limiting) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NP (NNS cars)) (PP (IN on) (NP (DT the) (NNS roads)))))))) (VP (MD would) (ADVP (RBS most) (RB likely)) (VP (VB improve) (NP (DT the) (NN air) (NN quality)) (PP (IN in) (NP (JJ large) (NNS texas) (NNS cities))))) (. .)))