Scope note:
This property qualifies the beginning of an E52 Time-Span in some way.
The nature of the qualification may be certainty, precision, source etc.
Examples:
- the time-span of the Holocene (E52) beginning is qualified by approximately (E62)
In First Order Logic:
P79 (x,y) ⊃ E52 (x)
P79 (x,y) ⊃ E62(y)
P79(x,y) ⊃ P3(x,y)