Assertion: newton's publication | /r/CapableOf | complicate the matter
Facets:
value: further
type: MANNER
Source sentences:
text: Complicating the matter further was the publication in 1689 of Leibniz's “Essay on the causes of celestial motions,” which offered a vortex theory in which “a planet moves with a double motion composed of the harmonic circulation of its fluid deferent orb, and the paracentric motion, as if it had a certain gravity of attraction, namely an impulsion towards the Sun