( ( If ( ( this fact ) ( is ( borne ( in mind ) ) ) ) ) ( , ( ( ( the ( exculpatory explanation ) ) ( by Thwala ) ) ( ( ( ( ( presents ( no explanation ) ) ( at all ) ) , ) ( because ( he ( simply ( ( does n't ) ( cover ( that base ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN If) (S (NP (DT this) (NN fact)) (VP (VBZ is) (VP (VBN borne) (PP (IN in) (NP (NN mind))))))) (, ,) (NP (NP (DT the) (JJ exculpatory) (NN explanation)) (PP (IN by) (NP (NNP Thwala)))) (VP (VBZ presents) (NP (DT no) (NN explanation)) (ADVP (IN at) (DT all)) (, ,) (SBAR (IN because) (S (NP (PRP he)) (ADVP (RB simply)) (VP (VBZ does) (RB n't) (VP (VB cover) (NP (DT that) (NN base))))))) (. .)))
If this fact is borne in mind, the exculpatory explanation by Thwala presents no explanation at all, because he simply doesn't cover that base.
(ROOT (S (NP (PDT All) (NP (JJ scientific) (NNS explanations)) (CC and) (NP (NNS interpretations))) (VP (VBN based) (PP (IN on) (NP (NNS facts)))) (. .)))