Some errors fixed. Deleted comment about the LOD point strategy

spslapi.yml

@@ -348,7 +348,7 @@ definitions:
         type: array
         description: >
           Root data blocks. Normally only one, but there are cases where the
-          model belongs to two different cells; then the model may be splitted in 
+          model belongs to two different cells; then the it must be split into 
           different root data blocks (i.e., octrees). 
         items: 
           type: integer
@@ -382,17 +382,16 @@ definitions:
     type: object
     description: > 
       A model is organized into a hierarchical structure of data blocks. Each data block 
-      represents a region of space enclosed in a box. This region is subdivided into a fixed n
-      umber of region (usually 8) that are also represented by data blocks, and so forth. 
+      represents a region of space enclosed in a box. This region is subdivided into a fixed
+      number of region (usually 8) that are also represented by data blocks, and so forth. 
         
       Each data block represents a level of detail (LOD) of the model in the associated region. 
-      In the case of a point model, this is a sampling of the points in the region. Data must not 
-      be redundant, i.e. data stored at a given data block must not be replicated in descendants. 
+      In the case of a point model, this is a sampling of the points in the region.
      
       This object does not provide the actual data, but its associated metadata (bounding box, 
-      size of the LOD, ids of descendant datablocks). The ids of the descendant data blocks would 
-      not be really necessary, since they can be computed from the id of the parent (see descriptionco
-      nvenience. The minimal bounding box of the data is also given for convenience.
+      size of the LOD, ids of descendant datablocks). The bounding box of the data ant the ids 
+      of the descendant data blocks would  not be really necessary, since they can be computed 
+      from the id of the parent; they are given for convenience.
       
     properties:
       id: