With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Princess Margaret did not have a lung operation.
text_B: Samajik Ekta Party -LRB- Social United Party -RRB- , a political party in Haryana , India.In SEP president is Nafe Singh Dahiya .. political party. political party. Haryana. Haryana. India. India. Ahead of the 1999 state assembly elections , SEP had joined the Haryana Sarvjatiya Morcha -LRB- Haryana All Caste Front -RRB- .. Haryana. Haryana. Haryana Sarvjatiya Morcha. Haryana Sarvjatiya Morcha
not_related.