If the following jobs are sequenced according to the DDATE rule,then the mean completion time (in days) for all jobs is (assume zero for today's date) 
Definitions:
Greater Sciatic Notch
A large, deep notch on the posterior border of the hip bone, through which several nerves and blood vessels pass.
Ischial Spine
A bony projection from the ischium bone of the pelvis, serving as an attachment point for ligaments and muscles of the pelvic region.
Pisiform
A small pea-shaped bone found in the proximal row of the wrist (carpal) bones, embedded within the flexor carpi ulnaris tendon.
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