diff --git a/main.cpp b/main.cpp
index 4e7a95a..21bcc22 100644
--- a/main.cpp
+++ b/main.cpp
@@ -110,6 +110,7 @@ int main(int argc, char* argv[]) {
   cells contentCells;
   cells backgroundCells;
   std::vector<Configuration> configurations;
+  std::vector<Probability> probabilities;
   std::map<coordinates, float> stateRewards;
   float faultyProbability = 0.1;
   float probIntended = 0.9;
@@ -121,7 +122,9 @@ int main(int argc, char* argv[]) {
     // TODO }
     if (configFilename->is_set()) {
       YamlConfigParser parser(configFilename->value(0));
-      configurations = parser.parseConfiguration();
+      auto parseResult = parser.parseConfiguration();
+      configurations = parseResult.configurations_;
+      probabilities = parseResult.probabilities_;
     }
 
     boost::escaped_list_separator<char> seps('\\', ';', '\n');
diff --git a/util/ConfigYaml.cpp b/util/ConfigYaml.cpp
index 07c2b8e..3a62b37 100644
--- a/util/ConfigYaml.cpp
+++ b/util/ConfigYaml.cpp
@@ -185,11 +185,32 @@ bool YAML::convert<Constant>::decode(const YAML::Node& node, Constant& rhs) {
     return true;
 }
 
+YAML::Node YAML::convert<Probability>::encode(const Probability& rhs) {
+    YAML::Node node;
+    
+    node.push_back(rhs.probability_);
+    node.push_back(rhs.value_);
+
+    return node;
+}
+
+bool YAML::convert<Probability>::decode(const YAML::Node& node, Probability& rhs) {
+    if (!node.IsDefined() || !node["probability"] || !node["value"]) {
+        return false;
+    }
+
+    rhs.probability_ = node["probability"].as<std::string>();
+    rhs.value_ = node["value"].as<double>();
+
+    return true;
+}
+
 const std::string Configuration::configuration_identifier_ { "; // created through configuration"};
 const std::string Configuration::overwrite_identifier_{"; // Overwritten through configuration"};
 
- std::vector<Configuration> YamlConfigParser::parseConfiguration() {
+YamlConfigParseResult YamlConfigParser::parseConfiguration() {
         std::vector<Configuration> configuration;
+        std::vector<Probability> probabilities;
 
         try {
             YAML::Node config = YAML::LoadFile(file_);  
@@ -211,6 +232,10 @@ const std::string Configuration::overwrite_identifier_{"; // Overwritten through
             if (config["constants"]) {
                 constants = config["constants"].as<std::vector<Constant>>();
             }
+
+            if (config["probabilities"]) {
+                probabilities = config["probabilities"].as<std::vector<Probability>>();
+            }
         
             for (auto& label : labels) {
                 configuration.push_back({label.createExpression(), label.label_ , ConfigType::Label, label.overwrite_});
@@ -234,5 +259,5 @@ const std::string Configuration::overwrite_identifier_{"; // Overwritten through
             std::cout << "while parsing configuration " << file_ << std::endl;
         }
 
-        return configuration;
+        return YamlConfigParseResult(configuration, probabilities);
 }
\ No newline at end of file
diff --git a/util/ConfigYaml.h b/util/ConfigYaml.h
index 6b4e93a..1b28eda 100644
--- a/util/ConfigYaml.h
+++ b/util/ConfigYaml.h
@@ -2,6 +2,7 @@
 
 #include <vector>
 #include <ostream>
+#include <utility>
 
 #include "yaml-cpp/yaml.h"
 
@@ -43,6 +44,17 @@ struct Configuration
   }
 };
 
+struct Probability {
+  Probability() = default;
+  Probability(const Probability&) = default;
+  ~Probability() = default;
+
+  std::string probability_;
+  double value_; 
+
+  friend std::ostream& operator <<(std::ostream& os, const Probability& property);
+};
+
 struct Constant {
   private:
 
@@ -137,6 +149,22 @@ struct YAML::convert<Constant> {
   static bool decode(const YAML::Node& node, Constant& rhs);
 };
 
+template<>
+struct YAML::convert<Probability> {
+  static YAML::Node encode(const Probability& rhs);
+  static bool decode(const YAML::Node& node, Probability& rhs);
+};
+
+struct YamlConfigParseResult {
+  YamlConfigParseResult(std::vector<Configuration> configurations, std::vector<Probability>  probabilities) 
+    : configurations_(configurations), probabilities_(probabilities) {}
+
+  ~YamlConfigParseResult() = default;
+  YamlConfigParseResult(const YamlConfigParseResult&) = default;
+
+  std::vector<Configuration> configurations_;
+  std::vector<Probability>  probabilities_;
+};
 
 struct YamlConfigParser {
     public:
@@ -144,8 +172,8 @@ struct YamlConfigParser {
         YamlConfigParser(const YamlConfigParser&) = delete;
         ~YamlConfigParser() = default;
 
-        std::vector<Configuration> parseConfiguration();
+        YamlConfigParseResult parseConfiguration();
     private:
 
         std::string file_;
-};
\ No newline at end of file
+};