Question

Passage

In the early twentieth century, seismologists believed the Earth’s core was a single, uniform liquid sphere. In $1929$, a major earthquake near New Zealand provided Inge Lehmann, a Danish seismologist, with an anomalies-rich dataset that challenged this consensus. Lehmann observed that weak compressional waves—specifically $P'$ waves—which should have been deflected or entirely absorbed by a liquid core, actually appeared in the seismological 'shadow zone' where no waves were expected. Rather than dismissing these readings as instrument error or local interference, Lehmann hypothesized that these waves were reflecting off a distinct boundary within the core itself. In her landmark $1936$ paper, simply titled '$P'$', she argued that the core consisted of a solid inner sphere surrounded by a liquid outer layer. Her colleagues, initially skeptical, were forced to reconsider as subsequent studies confirmed the presence of these reflected waves. Lehmann’s persistence was driven not by a desire to overthrow established models, but by a methodical devotion to raw data, which she meticulously recorded on cardboard cards. While peers focused on constructing grand theoretical frameworks, Lehmann’s ground-up approach quietly dismantled the prevailing geophysical assumptions of her era.

Question
Based on the implicit relationships and character motivations described in the passage, match each entity on the left with its corresponding inferred role, motivation, or significance on the right.