Update source/presentation/4.0/model.md

Author: JulieWinchester

source/presentation/4.0/model.md

@@ -533,7 +533,7 @@ There are common use cases in which a point, rather than a range or area, is the
 
 The spatial aspect of the point is given with `x` and `y` for a two-dimensional point, along with `z` for a three-dimentional point. The temporal aspect of the point is given with `instant`. If `instant` is not supplied, and the target resource has a `duration`, the selector is interpreted as targeting the entire duration. If `instant` is supplied, but no spatial point, the selector is interpreted as targeting the entire spatial aspect of the resource.
 
-For 3d content resources painted into a Scene that have a local coordinate space relative to the relatively global coordinate space of the Scene, clients _MUST_ align the local coordinate origin of the content resource with the 3d point indicated by the Point Selector within the Scene. Thus the 3d resource's origin is placed at the desired point in the Scene. For a Canvas painted into a Scene as an Annotation, the top-left corner of the Canvas (the Canvas coordinate origin) _MUST_ be aligned with the 3d point indicated by the Point Selector within the Scene.
+For 3d content resources painted into a Scene that have a local coordinate space relative to the global coordinate space of the Scene, clients _MUST_ align the local coordinate origin of the content resource with the 3d point indicated by the Point Selector within the Scene. Thus the 3d resource's origin is placed at the desired point in the Scene. For a Canvas painted into a Scene as an Annotation, the top-left corner of the Canvas (the Canvas coordinate origin) _MUST_ be aligned with the 3d point indicated by the Point Selector within the Scene.
 
 __Properties__<br/>
 A Point Selector _MUST_ have the following properties: [type](#type)<br/><br/>