With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Birth of the Dragon's principal photography began in a North American country.
text_B: Samandarin or Samandarine is the main steroidal alkaloid secreted by the fire salamander -LRB- Salamandra salamandra -RRB- .. alkaloid. alkaloid. fire salamander. fire salamander. The compound is extremely toxic -LRB- LD50 = 70 µg  /  kg in mice -RRB- .. Poisoning can cause convulsions , respiratory paralysis , and eventual death .. convulsions. convulsions. respiratory paralysis. respiratory paralysis. Samandarin is also believed to be the active ingredient in Salamander brandy , a Slovenian drink with purported hallucinogenic and aphrodisiac effects .. hallucinogenic. hallucinogenic. aphrodisiac. aphrodisiac
not_related.