Wikipedia entity: Arbutus unedo
Topics: plant propagation; success rate; time period
Original sentence: Germination rate is low, rarely over 20%.Layering can take up to two years, but has a good success rate, while cutting is done with a 15-20 cm (6-8 in) long mature wood, preferably with a heel in November to December.
Quantified sentence: Germination rate is low, rarely small. Layering can take up to two years, but has a good success rate, while cutting is done with a 15–20 cm (6–8 in) long mature wood, preferably with a heel in November to December.
Quantifier: small
Percentage: 20%
Specificity: unable