Classifier Instance:

Anchor text: the exact solution
Target Entity: Kerr_metric
Preceding Context: In this period more general black hole solutions were found. In 1963, Roy Kerr found
Succeeding Context: for a rotating black hole. Two years later, Ezra Newman found the axisymmetric solution for a black hole that is both rotating and electrically charged. Through the work of Werner Israel, Brandon Carter, and David Robinson the no-hair theorem emerged, stating that a stationary black hole solution is completely described by the three parameters of the Kerr–Newman metric; mass, angular momentum, and electric charge.
Paragraph Title: Golden age
Source Page: Black hole

Ground Truth Types:

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