return false;
        }
        list($yearA, $monthA, $dayA) = $this->explodeTimestamp($a->getTime());
        list($yearB, $monthB, $dayB) = $this->explodeTimestamp($b->getTime());
        return $yearA === $yearB && !($b->getPrecision() >= TimeValue::PRECISION_MONTH && $monthA !== $monthB) && !($b->getPrecision() >= TimeValue::PRECISION_DAY && $dayA !== $dayB);
    }
    private function explodeTimestamp($timestamp)
    {
        preg_match('/^([-+]\\d+)-(\\d\\d)-(\\d\\d)T(\\d\\d):(\\d\\d):(\\d\\d)Z$/', $timestamp, $m);
        array_shift($m);
        return $m;
    }
    //Very, very hacky
    private function hasMeaningfulReference(Statement $statement)
    {
        foreach ($statement->getReferences() as $reference) {
            foreach ($reference->getSnaks() as $snak) {
                if (!$snak->equals(new PropertyValueSnak(new PropertyId('P248'), new EntityIdValue(new ItemId('Q36578')))) && !$snak->getPropertyId()->equals(new PropertyId('P813')) && !$snak->getPropertyId()->equals(new PropertyId('P143'))) {
                    return true;
                }
            }
        }
        return false;
    }
}
$api = new MediawikiApi('https://www.wikidata.org/w/api.php');
$api->login(new ApiUser(MY_USERNAME, MY_PASSWORD));
//TODO
$bot = new Bot($api);
$bot->addStatementFromTsvFile($argv[1]);
//$bot->addStatementFromPrimarySourcesQuery(['property' => 'P1771']);