They observe, they conjecture, then they formulate a hypothesis, then they design experiments to disprove the hypothesis.
(they; conjecture; ) (they; design; experiments; to disprove the hypothesis; T:then) Context(they design,List([70, 81))):(they; formulate; a hypothesis; T:then) Context(they formulate they design,List([36, 81))):(They; observe; ) Context(they design,List([70, 81))):(they; design experiments to disprove; the hypothesis)
they design,List([70, 81)) they formulate they design,List([36, 81)) they design,List([70, 81))
they they they They they
conjecture design formulate observe design experiments to disprove
experiments to disprove the hypothesis T:then
a hypothesis T:then
the hypothesis