Simplify sentences for dataset

slides/dataset.tex

@@ -8,7 +8,7 @@
 		      al.\footnote[1]{H. Wachsmuth, B. Stein, and Y. Ajjour "PageRank" for Argument
 			      Relevance}
 		\item In this dataset Wachsmuth et al. constructed a ground-truth argument graph
-		      as well as benchmark for argument ranking from this argument graph
+		      as well as benchmark for argument ranking
 		\item The data are originally collected from the Argument Web and stored in an
 		      argument graph
 		\item The Argument Web was the largest existing argument database with a
@@ -45,7 +45,7 @@
 		      from the graph that fulfill their requirements
 		      \begin{itemize}
 			      \item A conclusion must be part in more than one argument
-			      \item Furhtermore, Wachsmuth et al. removed all nodes that do not contain a
+			      \item All nodes are removed that do not contain a
 			            real claim
 			      \item Additionally, an argument:
 			            \begin{itemize}