the fact that the stein is not stingy is true.
sent1: the stein is not stingy if there exists something such that it owns electrometer and it is not non-Proustian. sent2: everything does formalize sangaree and it is Proustian. sent3: the girth is a Sphecidae. sent4: if something is a Sphecidae it is a pounce. sent5: if the girth is a kind of a pounce the fact that the Spartan does own electrometer hold.
sent4 -> int1: if the girth is a Sphecidae it is a kind of a pounce.; int1 & sent3 -> int2: the girth does pounce.; int2 & sent5 -> int3: the Spartan does own electrometer.; sent2 -> int4: the Spartan formalizes sangaree and it is Proustian.; int4 -> int5: the Spartan is Proustian.; int3 & int5 -> int6: the Spartan does own electrometer and it is Proustian.; int6 -> int7: there is something such that it owns electrometer and it is Proustian.; int7 & sent1 -> hypothesis;
$hypothesis$ = the fact that the stein is not stingy is true. ; $context$ = sent1: the stein is not stingy if there exists something such that it owns electrometer and it is not non-Proustian. sent2: everything does formalize sangaree and it is Proustian. sent3: the girth is a Sphecidae. sent4: if something is a Sphecidae it is a pounce. sent5: if the girth is a kind of a pounce the fact that the Spartan does own electrometer hold. ; $proof$ = 
sent4 -> int1: if the girth is a Sphecidae it is a kind of a pounce.; int1 & sent3 -> int2: the girth does pounce.; int2 & sent5 -> int3: the Spartan does own electrometer.; sent2 -> int4: the Spartan formalizes sangaree and it is Proustian.; int4 -> int5: the Spartan is Proustian.; int3 & int5 -> int6: the Spartan does own electrometer and it is Proustian.; int6 -> int7: there is something such that it owns electrometer and it is Proustian.; int7 & sent1 -> hypothesis; __PROVED__