diff --git a/lib/puppet/pops/adapters.rb b/lib/puppet/pops/adapters.rb
index 111fb9971..ac84e4e92 100644
--- a/lib/puppet/pops/adapters.rb
+++ b/lib/puppet/pops/adapters.rb
@@ -1,94 +1,94 @@
 # The Adapters module contains adapters for Documentation, Origin, SourcePosition, and Loader.
 #
 module Puppet::Pops::Adapters
   # A documentation adapter adapts an object with a documentation string.
   # (The intended use is for a source text parser to extract documentation and store this
   # in DocumentationAdapter instances).
   #
   class DocumentationAdapter < Puppet::Pops::Adaptable::Adapter
     # @return [String] The documentation associated with an object
     attr_accessor :documentation
   end
 
   # An origin adapter adapts an object with where it came from. This origin
   # describes the resource (a file, etc.) where source text originates.
   # Instances of SourcePosAdapter is then used on other objects in a model to
   # describe their relative position versus the origin.
   #
   # @see Puppet::Pops::Utils#find_adapter
   #
   class OriginAdapter < Puppet::Pops::Adaptable::Adapter
     # @return [String] the origin of the adapted (usually a filename)
     attr_accessor :origin
   end
 
-  # A SourcePosAdapter describes hold a reference to something *locateable* (a position in source text).
+  # A SourcePosAdapter holds a reference to something *locateable* (a position in source text).
   # This is represented by an instance of Puppet::Pops::Parser::Locateable (it has an offset, a length, and
   # a Puppet::Pops::Parser::Locator) that are used together to provide derived information (line, and position
   # on line).
   # This somewhat complex structure makes it possible to correctly refer to a source position
   # in source that is embedded in some resource; a parser only sees the embedded snippet of source text
   # and does not know where it was embedded. It also enables lazy evaluation of source positions (they are
   # rarely needed - typically just when there is an error to report.
   #
   # @note It is relatively expensive to compute line and postion on line - it is not something that
   #   should be done for every token or model object.
   #
   # @see Puppet::Pops::Utils#find_adapter
   #
   class SourcePosAdapter < Puppet::Pops::Adaptable::Adapter
     attr_accessor :locatable
 
     def locator
       locatable.locator
     end
 
     def offset
       locatable.offset
     end
 
     def length
       locatable.length
     end
 
     # Produces the line number for the given offset.
     # @note This is an expensive operation
     #
     def line
       locatable.locator.line_for_offset(offset)
     end
 
     # Produces the position on the line of the given offset.
     # @note This is an expensive operation
     #
     def pos
       locatable.locator.pos_on_line(offset)
     end
 
     # Extracts the text represented by this source position (the string is obtained from the locator)
     def extract_text
       locatable.locator.string.slice(offset, length)
     end
 
     # Extracts the text represented by this source position from a given string (which needs to be identical
     # to what is held in the locator - why is this needed ? 
     # TODO:
     def extract_text_from_string(string)
       string.slice(offset, length)
     end
   end
 
   # A LoaderAdapter adapts an object with a {Puppet::Pops::Loader}. This is used to make further loading from the
   # perspective of the adapted object take place in the perspective of this Loader.
   #
   # It is typically enough to adapt the root of a model as a search is made towards the root of the model
   # until a loader is found, but there is no harm in duplicating this information provided a contained
   # object is adapted with the correct loader.
   #
   # @see Puppet::Pops::Utils#find_adapter
   #
   class LoaderAdapter < Puppet::Pops::Adaptable::Adapter
     # @return [Puppet::Pops::Loader] the loader
     attr_accessor :loader
   end
 end