We are going back to the airport.
( We ( ( are ( ( going back ) ( to ( the airport ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP are) (VP (VBG going) (ADVP (RB back)) (PP (TO to) (NP (DT the) (NN airport))))) (. .)))
At this point, we will be going as far away from the airport as we possibly can. 
( ( At ( this point ) ) ( , ( we ( ( will ( be ( ( ( going ( as ( far away ) ) ) ( from ( the airport ) ) ) ( as ( we ( possibly can ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (DT this) (NN point))) (, ,) (NP (PRP we)) (VP (MD will) (VP (VB be) (VP (VBG going) (ADVP (RB as) (RB far) (RB away)) (PP (IN from) (NP (DT the) (NN airport))) (SBAR (IN as) (S (NP (PRP we)) (ADVP (RB possibly)) (VP (MD can))))))) (. .)))