HP_0000126 Hydronephrosis and HP_0010946 Dilatation of the renal pelvis are inferred to be equivalent

[nicolevasilevsky]

HP_0000126 Hydronephrosis and HP_0010946 Dilatation of the renal pelvis are inferred to be equivalent

HP_0000126 Hydronephrosis
'has part' some
(dilated and ('inheres in' some 'renal pelvis') and ('has modifier' some abnormal))

text def
Severe distention of the kidney with dilation of the renal pelvis and calices.

HP_0010946 Dilatation of the renal pelvis
'has part' some
'has part' some
(dilated and ('inheres in' some 'renal pelvis') and ('has modifier' some abnormal))

text def
The presence of dilatation of the renal pelvis.

These terms have the same logical definitions.

Should the logical definition for hydronephrosis use distended instead of dilated?

Related to #149

@cmungall @pnrobinson

[nicolevasilevsky]

Removed the logical def for HP_0000126 Hydronephrosis, per Seb's guidelines in #149

If the two terms are highly similar, but one of them has a text-def that clearly separates him from the other term, and we don't have way to express this difference in OWL, remove the logical def of the more specific class. (Check set of ancestor classes)