(or 
) and
a 
(or , 
, 
, 
) which restricts its existence to a period of time,
¶7-1-1, figure 2, d. is a special case of temporal
| duration | DUR |
a relation of MultiNet holding between a (or ) and
a (or , , , ) which restricts its existence to a period of time,
¶7-1-1, figure 2, d. is a special case of temporal
|