premise: Man observes a wavelength given off by an electronic device.
hypothesis: The man is examining what wavelength is given off by the device.
explanation_1: A man observes must be examining.
explanation_2: Observes is rephrased to examines although the to word meaning are different. Observes meaning to watch. Examines meaning to take a detailed account.
explanation_3: "The man is examining what wavelength is given off by the device." is a rephrasing of "Man observes a wavelength given off by an electronic device."
premise_logic: exists e1 e2 s1 s2 x1 x2 x3 x4.(Theme(e2,x2) & Actor(e2,x1) & v_observe(e2) & Actor(e1,x4) & n_device(x4) & a_electronic(s2) & Theme(s2,x4) & a_off(s1) & Manner(e1,s1) & Theme(e1,x3) & v_give(e1) & (x2 = x3) & n_wavelength(x2) & n_man(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(n_device(x3) & n_man(x1) & Actor(e1,x3) & a_off(s1) & Manner(e1,s1) & Theme(e1,x1) & v_give(e1) & exists e2 x4.(n_wavelength(x4) & Theme(e2,x4) & Actor(e2,x2) & v_examine(e2)) & (x1 = x2))