diff --git a/30_Thesis/sections/40_concept.tex b/30_Thesis/sections/40_concept.tex
index 0f98b5c..15f1506 100644
--- a/30_Thesis/sections/40_concept.tex
+++ b/30_Thesis/sections/40_concept.tex
@@ -103,8 +103,8 @@ The evaluation is done solely with the recommender system and its APIs. Thus, th
 \section{User Interaction with the System}
 \label{sec:Concept:UserSystemInteraction}
 
-The system has one main way to be used as defined in \autoref{tab:Concept:MainUseCase}. This process is also visualized in \autoref{fig:Concept:ConfigurationProcess}. All users start the configuration process together.
-They select the current state at the beginning of the process. Then repeatedly users enter their preferences until each user's preference have been entered into a system. Based on the entered preferences the system generates a recommendation that is a compromise of all users preferences.
+There is one main way to use the system which is defined in \autoref{tab:Concept:MainUseCase}. This process is also visualized in \autoref{fig:Concept:ConfigurationProcess}. All users start the configuration process together.
+They select the current state at the beginning of the process. Then users repeatedly enter their preferences until each user's preferences have been entered into the system. Based on the entered preferences the system generates a recommendation that is a compromise of all users preferences.
 
 \begin{figure}
     \centering