Fact engine

from qwed_sdk import QWEDClient

client = QWEDClient(api_key="qwed_...")

result = client.verify_fact(
    claim="The company was founded in 2020.",
    context="Acme Corp was founded in 2020 by John Smith in San Francisco."
)

print(result.verdict)       # "SUPPORTED"
print(result.confidence)    # 0.95
print(result.citations)     # [{"sentence": "...", "relevance": 0.98}]
print(result.methods_used)  # ["semantic_similarity", "entity_matching"]

BEFORE (v1): 
Claim → LLM → "I think this is supported" 😕

AFTER (v2):
Claim → TF-IDF + Entity Match → SUPPORTED ✅
       (LLM only if confidence < 0.7)