diff --git a/csv/class/srs.csv b/csv/class/srs.csv
index 617c0ce..3190927 100644
--- a/csv/class/srs.csv
+++ b/csv/class/srs.csv
@@ -20,7 +20,7 @@ geosrs:CRS,geosrs:SpatialReferenceSystem,Coordinate Reference System,,iso19111:C
 ,,,,,,geocrs:SelenographicCRS,,,,,
 geosrs:ReferenceSystem,,Reference System,,,,geocrs:ReferenceSystem,,,,,
 ,,,,iso19111:SingleCRS,ign:SingleCRS,geocrs:SingleCRS,,Core Ontology,"Coordinate reference system consisting of one coordinate system and one datum. Cf. ISO 19111:2007:2007-07, table 5.",,
-geosrs:SpatialReferenceSystem,geosrs:ReferenceSystem,Spatial Reference System,,,,geocrs:SpatialReferenceSystem,,Core Ontology,,,
+geosrs:SpatialReferenceSystem,geosrs:ReferenceSystem,Spatial Reference System,,,,geocrs:SpatialReferenceSystem,,Core Ontology,,A reference system allowing the description of a position.,
 ,,,,,,geocrs:SpatioParametricCompoundCRS,,,,,
 ,,,,,,geocrs:SpatioParametricTemporalCompoundCRS,,,,,
 ,,,,,,geocrs:SpatioTemporalCompoundCRS,,,,,
@@ -31,4 +31,4 @@ geosrs:SpatialReferenceSystem,geosrs:ReferenceSystem,Spatial Reference System,,,
 ,,,,,ign:Extent,,,,"Geographic area or time interval in which the referring object is valid. Cf. ISO 19115-1:2014:2014-04, part 6.6.1 and table B.15 line 335.",,
 ,,,,,ign:GeographicBoundingBox,,,,"Frame delimiting an area of interest. See ISO 19115-1:2014:2014-04, part 6.6.1 and table B.15.1 line 344.",,
 ,,,,,ign:AxesList,,,,Ordered list of coordinate system axes.,,
-,,,,,ign:SingleCRSList,,,,Ordered list of simple reference coordinate systems.,,
\ No newline at end of file
+,,,,,ign:SingleCRSList,,,,Ordered list of simple reference coordinate systems.,,