the fact that the ornithologist is not Mexican but it is a paregoric is wrong.
sent1: if the diagnostician is a sugar or not a practitioner or both then the handspike is not Keynesian. sent2: if something is not Keynesian it is not a Maclura and it does not spring-clean Bucephala. sent3: the diagnostician is a sugar and/or it is a practitioner. sent4: if the ethnographer is not a permanent the diagnostician is a sugar. sent5: if something is not a Maclura and does not spring-clean Bucephala then the sultana is not Mexican. sent6: the sultana is not a Mexican if something is a kind of a Maclura and does not spring-clean Bucephala. sent7: the ethnographer is not permanent.
sent4 & sent7 -> int1: the diagnostician does sugar.; int1 -> int2: the diagnostician is a sugar or it is not a practitioner or both.; int2 & sent1 -> int3: the handspike is not Keynesian.; sent2 -> int4: if the handspike is not a kind of a Keynesian it is not a Maclura and does not spring-clean Bucephala.; int3 & int4 -> int5: the handspike is not a Maclura and it does not spring-clean Bucephala.; int5 -> int6: something is not a Maclura and it does not spring-clean Bucephala.; int6 & sent5 -> int7: the sultana is non-Mexican.;
$hypothesis$ = the fact that the ornithologist is not Mexican but it is a paregoric is wrong. ; $context$ = sent1: if the diagnostician is a sugar or not a practitioner or both then the handspike is not Keynesian. sent2: if something is not Keynesian it is not a Maclura and it does not spring-clean Bucephala. sent3: the diagnostician is a sugar and/or it is a practitioner. sent4: if the ethnographer is not a permanent the diagnostician is a sugar. sent5: if something is not a Maclura and does not spring-clean Bucephala then the sultana is not Mexican. sent6: the sultana is not a Mexican if something is a kind of a Maclura and does not spring-clean Bucephala. sent7: the ethnographer is not permanent. ; $proof$ = 
sent4 & sent7 -> int1: the diagnostician does sugar.; int1 -> int2: the diagnostician is a sugar or it is not a practitioner or both.; int2 & sent1 -> int3: the handspike is not Keynesian.; sent2 -> int4: if the handspike is not a kind of a Keynesian it is not a Maclura and does not spring-clean Bucephala.; int3 & int4 -> int5: the handspike is not a Maclura and it does not spring-clean Bucephala.; int5 -> int6: something is not a Maclura and it does not spring-clean Bucephala.; int6 & sent5 -> int7: the sultana is non-Mexican.; __UNKNOWN__