-You are to choose a meshing algorithm for every dimension of
-sub-shapes up to the highest dimension you desire to generate. Note
-that some algorithms generate elements of several dimensions while
-others, of only one. But it's not necessary to define meshing
+It is required to choose a meshing algorithm for every dimension of
+sub-shapes up to the highest dimension to be generated. Note
+that some algorithms generate elements of several dimensions, and
+others of only one. It is not necessary to define meshing