With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Stranger Things is not set in the 1980s.
text_B: Market timing is the strategy of making buy or sell decisions of financial assets -LRB- often stocks -RRB- by attempting to predict future market price movements .. strategy. Trading strategy. The prediction may be based on an outlook of market or economic conditions resulting from technical or fundamental analysis .. technical. Technical analysis. fundamental. Fundamental analysis. This is an investment strategy based on the outlook for an aggregate market , rather than for a particular financial asset .. strategy. Trading strategy. investment strategy. investment strategy
not_related.