With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: J. Howard Marshall was professionally involved in business and academics.
text_B: The Ranquil massacre -LRB- matanza de Ranquil -RRB- was a massacre of forestry workers by the Chilean Army in the upper Bio-Bio River in 1934 .. Chilean Army. Chilean Army. massacre. massacre. upper Bio-Bio River. Alto Bio Bio. The upper Bio-Bio region had recently been opened for Chilean and foreign settlers due to the occupation of the Araucania , and huge extensions of former Mapuche land were available .. Mapuche. Mapuche. occupation of the Araucania. occupation of the Araucania. The workers rebelled against the lumber mill administrators , later the Chilean Army was called to restore order .. Chilean Army. Chilean Army. lumber mill. lumber mill. 477 workers and Mapuches were killed as result .. Around 500 prisoners were taken .
not_related.