Added first implementation of concepts ambiguity resolution + Jenkins file test

src/core/sheerka/services/SheerkaExecute.py

@@ -144,7 +144,7 @@ class SheerkaExecute(BaseService):
         self.pi_cache = Cache(default=lambda key: ParserInput(key), max_size=20)
 
     def initialize(self):
-        self.sheerka.bind_service_method(self.execute)
+        self.sheerka.bind_service_method(self.execute, True)
 
         self.sheerka.cache_manager.register_cache(self.PARSERS_INPUTS_ENTRY, self.pi_cache, False)
 
@@ -362,7 +362,8 @@ class SheerkaExecute(BaseService):
                                     if not isinstance(results, list):
                                         results = [results]
                                     for result in results:
-                                        evaluated_items.append(result)
+                                        if result.body:
+                                            evaluated_items.append(result)
                                         to_delete.extend(result.parents)
                                     sub_context.add_values(return_values=results)
                                 else: