=centercr
@ []Query Q 3.9.1: When did anybody have at least the skills that Di had at the same time?
Answer: ``None''
Category: (None, Element, Derived) / (Containment, Element, Computed) / (=, Constant)
=centercr
@ []Query Q 3.9.2: When was the budget for Toy department more than 100K?
Answer: ``01/01/82–12/31/86''
Category: (None, Element, Derived) / (Containment, Element, Computed) /
(=, Constant) (< >, Constant)
=centercr
@ []Query Q 3.9.3: When was the last period when Edward had driving, filing and typing
skills simulataneously?
Answer: ``01/01/88–05/31/88''
Category: (None, Event, Derived) / (Containment, Event, Computed) (temporal aggregate) / (=, Constant) (=, Constant)
=centercr
@ []Query Q 3.9.4: When did anybody have at least the skills that Di had?
Answer: ``No time.''
Category: (None, Element, Derived) / (Containment, Element, Computed) / (=, Constant)
=centercr
@ []Query Q 3.9.5: When did Di earn less than Ed?
Answer: ``No time.''
Category: (None, Element, Derived) / (Duration, Element, Computed) / (=, Constant) (=, Constant)
=centercr
@ []Query Q 3.9.6: When did Ed work in Toy department while the department was managed
by Di?
Answer: ``02/01/82–12/31/87''
Category: (None, Element, Derived) / (Duration, Element, Computed) / (=, Constant)
/ (=, Constant) (=, Constant)
=centercr
@ []Query Q 3.9.7: When did Edward have driving skills?
Answer: ``01/01/82–05/01/82'' and ``06/01/84–05/31/88''
Category: (None, Element, Derived) / (Containment, Element, Computed) /
(=, Constant) (=, Constant)