It is the official solution, Liq. 
( It ( ( is ( ( ( the ( official solution ) ) , ) Liq ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (NP (NP (DT the) (JJ official) (NN solution)) (, ,) (NP (NNP Liq)))) (. .)))
This is the official solution to the alien problem we have had to contend with.
( This ( ( is ( ( the ( official solution ) ) ( to ( ( the ( alien problem ) ) ( we ( have ( had ( to ( contend with ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ is) (NP (NP (DT the) (JJ official) (NN solution)) (PP (TO to) (NP (NP (DT the) (JJ alien) (NN problem)) (SBAR (S (NP (PRP we)) (VP (VBP have) (VP (VBN had) (S (VP (TO to) (VP (VB contend) (PP (IN with))))))))))))) (. .)))