the mask is not a Guatemalan.
sent1: if the fact that the production does not mooch subcontractor and is a trifler is not right it is not a trifler. sent2: if something is not a trifler it is a kind of non-angelic thing that is a kind of a northerly. sent3: if that either the indweller is not a trifler or it does adapt meadowgrass or both is not correct the mask is Guatemalan. sent4: if there is something such that it is not urinary then the production either is upmarket or is a northerly or both. sent5: if something is a northerly then it is not upmarket and it is not urinary. sent6: there exists something such that it is not urinary. sent7: if the fact that the production is upmarket and/or it is a northerly hold then that the subcontractor is not angelic is correct. sent8: if the subcontractor is not angelic then that the indweller is not a trifler and/or it does adapt meadowgrass does not hold.
sent6 & sent4 -> int1: the production is upmarket and/or it is a kind of a northerly.; sent7 & int1 -> int2: the subcontractor is non-angelic.; sent8 & int2 -> int3: that the indweller is not a kind of a trifler and/or does adapt meadowgrass is not correct.; sent3 & int3 -> hypothesis;
the mask is not a Guatemalan.
sent5 -> int4: if the production is a northerly then it is not upmarket and it is not urinary.; sent2 -> int5: if the production is not a kind of a trifler it is a kind of non-angelic thing that is a northerly.;
$hypothesis$ = the mask is not a Guatemalan. ; $context$ = sent1: if the fact that the production does not mooch subcontractor and is a trifler is not right it is not a trifler. sent2: if something is not a trifler it is a kind of non-angelic thing that is a kind of a northerly. sent3: if that either the indweller is not a trifler or it does adapt meadowgrass or both is not correct the mask is Guatemalan. sent4: if there is something such that it is not urinary then the production either is upmarket or is a northerly or both. sent5: if something is a northerly then it is not upmarket and it is not urinary. sent6: there exists something such that it is not urinary. sent7: if the fact that the production is upmarket and/or it is a northerly hold then that the subcontractor is not angelic is correct. sent8: if the subcontractor is not angelic then that the indweller is not a trifler and/or it does adapt meadowgrass does not hold. ; $proof$ = 
sent6 & sent4 -> int1: the production is upmarket and/or it is a kind of a northerly.; sent7 & int1 -> int2: the subcontractor is non-angelic.; sent8 & int2 -> int3: that the indweller is not a kind of a trifler and/or does adapt meadowgrass is not correct.; sent3 & int3 -> hypothesis; __DISPROVED__