Wikipedia entity: Human evolution
Topics: genetics; human evolution; interbreeding
Original sentence: Though this interbred Romanian population seems not to have been ancestral to modern humans, the finding indicates that interbreeding happened repeatedly.All modern non-African humans have about 1% to 4% (or 1.5% to 2.6% by more recent data) of their DNA derived from Neanderthals.
Quantified sentence: Though this interbred Romanian population seems not to have been ancestral to modern humans, the finding indicates that interbreeding happened repeatedly. All modern non-African humans have about 1% to 4% (or a small amount by more recent data) of their DNA derived from Neanderthals.
Quantifier: small
Percentage: 1.5%-2.6%
Specificity: unable