diff --git a/src/main/java/com/cristobalbernal/loladvisor/service/LolQueryService.java b/src/main/java/com/cristobalbernal/loladvisor/service/LolQueryService.java
index 8bce2d4..f100f78 100644
--- a/src/main/java/com/cristobalbernal/loladvisor/service/LolQueryService.java
+++ b/src/main/java/com/cristobalbernal/loladvisor/service/LolQueryService.java
@@ -5,10 +5,8 @@ import com.cristobalbernal.loladvisor.model.Lol;
 import java.util.Collection;
 
 public interface LolQueryService {
-    public Collection<Lol> exec();
-    public LolQueryService anyGenre(String... genres);
-    public LolQueryService allGenres(String... genres);
-    public LolQueryService year(String name);
-    public LolQueryService betweenYears(String from, String to);
-    public LolQueryService titleContains(String title);
+    public LolQueryService exec();
+    public LolQueryService anyDificultad(String... dificultad);
+    public LolQueryService anyRol(String... rol);
+
 }
diff --git a/src/main/java/com/cristobalbernal/loladvisor/service/LolQueryServices.java b/src/main/java/com/cristobalbernal/loladvisor/service/LolQueryServices.java
new file mode 100644
index 0000000..35c6a2e
--- /dev/null
+++ b/src/main/java/com/cristobalbernal/loladvisor/service/LolQueryServices.java
@@ -0,0 +1,47 @@
+package com.cristobalbernal.loladvisor.service;
+
+import com.cristobalbernal.loladvisor.dao.LolDao;
+import com.cristobalbernal.loladvisor.model.Lol;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.Arrays;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+
+@Service
+public class LolQueryServices implements LolQueryService {
+
+    private LolDao dao;
+
+    private Predicate<Lol> predicate;
+
+    public void init(){
+        predicate = null;
+    }
+
+
+
+    @Override
+    public LolQueryService exec() {
+        return (LolQueryService) dao.findAll()
+                .stream()
+                .filter(predicate)
+                .collect(Collectors.toList());
+
+    }
+
+    @Override
+    public LolQueryService anyDificultad(String... dificultad) {
+        Predicate<Lol> lolPredicate = (lol -> Arrays.stream(dificultad).anyMatch(lol.getNombre()::contains));
+        predicate = (predicate == null) ? lolPredicate : predicate.and(lolPredicate);
+        return this;
+    }
+
+    @Override
+    public LolQueryService anyRol(String... rol) {
+        Predicate<Lol> pAllGenres = (lol -> Arrays.stream(rol).allMatch(lol.getRol()::contains));
+        predicate = (predicate == null) ? pAllGenres : predicate.and(pAllGenres);
+        return this;
+    }
+}
diff --git a/src/main/java/com/cristobalbernal/loladvisor/service/LolService.java b/src/main/java/com/cristobalbernal/loladvisor/service/LolService.java
new file mode 100644
index 0000000..83667c0
--- /dev/null
+++ b/src/main/java/com/cristobalbernal/loladvisor/service/LolService.java
@@ -0,0 +1,11 @@
+package com.cristobalbernal.loladvisor.service;
+
+import com.cristobalbernal.loladvisor.dao.LolDao;
+
+public class LolService {
+    LolDao filmDao;
+
+    LolQueryService queryService;
+
+
+}