updated examples
diff --git a/examples/bsp4.json b/examples/bsp4.json
index b15ce11..42d57c7 100644
--- a/examples/bsp4.json
+++ b/examples/bsp4.json
@@ -1,124 +1,72 @@
-{
-   "@context":{
-      "korap":"http://korap.ids-mannheim.de/ns/KorAP/json-ld/v0.1/",
-      "boundary":"korap:boundary/",
-      "group":"korap:group/",
-      "operation":{
-         "@id":"group:operation/",
-         "@type":"@id"
-      },
-      "class":{
-         "@id":"group:class",
-         "@type":"xsd:integer"
-      },
-      "operands":{
-         "@id":"group:operands",
-         "@container":"@list"
-      },
-      "frame":{
-         "@id":"group:frame/",
-         "@type":"@id"
-      },
-      "classRef":{
-         "@id":"group:classRef",
-         "@type":"xsd:integer"
-      },
-      "spanRef":{
-         "@id":"group:spanRef",
-         "@type":"xsd:integer"
-      },
-      "classRefOp":{
-         "@id":"group:classRefOp",
-         "@type":"@id"
-      },
-      "min":{
-         "@id":"boundary:min",
-         "@type":"xsd:integer"
-      },
-      "max":{
-         "@id":"boundary:max",
-         "@type":"xsd:integer"
-      },
-      "exclude":{
-         "@id":"group:exclude",
-         "@type":"xsd:boolean"
-      },
-      "distances":{
-         "@id":"group:distances",
-         "@container":"@list"
-      },
-      "inOrder":{
-         "@id":"group:inOrder",
-         "@type":"xsd:boolean"
-      }
-   },
-   "query":{
-      "type":"group",
-      "operation":"sequence",
-      "inOrder":"true",
-      "distances":[
-         {
-            "type":"distance",
-            "measure":"w",
-            "min":0,
-            "max":5
-         }
-      ],
-      "operands":[
-         {
-            "type":"group",
-            "operation":"sequence",
-            "inOrder":"true",
-            "distances":[
-               {
-                  "type":"group",
-                  "operation":"and",
-                  "operands":[
-                     {
-                        "type":"distance",
-                        "measure":"w",
-                        "min":"1",
-                        "max":"3"
-                     },
-                     {
-                        "type":"distance",
-                        "measure":"s",
-                        "min":"1",
-                        "max":"1"
-                     }
-                  ]
-               }
-            ],
-            "operands":[
-               {
-                  "type":"token",
-                  "key":{
-                     "type":"term",
-                     "key":"Der",
-                     "layer":"orth",
-                     "match":"eq"
-                  }
-               },
-               {
-                  "type":"token",
-                  "key":{
-                     "type":"term",
-                     "key":"Mann",
-                     "layer":"orth",
-                     "match":"eq"
-                  }
-               }
-            ]
-         },
-         {
-            "type":"token",
-            "key":{
-               "type":"term",
-               "key":"geht",
-               "layer":"orth",
-               "match":"eq"
-            }
-         }
-      ]
-   }
+{

+   "context":"http://ids-mannheim.de/ns/KorAP/json-ld/v0.1/context.jsonld",

+   "query":{

+      "@type":"korap:group",

+      "operation":"operation:sequence",

+      "inOrder":true,

+      "distances":[

+         {

+            "@type":"korap:distance",

+            "key":"w",

+            "min":0,

+            "max":5

+         }

+      ],

+      "operands":[

+         {

+            "@type":"korap:group",

+            "operation":"operation:sequence",

+            "inOrder":true,

+            "distances":[

+               {

+                  "@type":"korap:group",

+                  "operation":"operation:and",

+                  "operands":[

+                     {

+                        "@type":"korap:distance",

+                        "key":"w",

+                        "min":1,

+                        "max":3

+                     },

+                     {

+                        "@type":"korap:distance",

+                        "key":"s",

+                        "min":1,

+                        "max":1

+                     }

+                  ]

+               }

+            ],

+            "operands":[

+               {

+                  "@type":"korap:token",

+                  "wrap":{

+                     "@type":"korap:term",

+                     "key":"Der",

+                     "layer":"orth",

+                     "match":"eq"

+                  }

+               },

+               {

+                  "@type":"korap:token",

+                  "wrap":{

+                     "@type":"korap:term",

+                     "key":"Mann",

+                     "layer":"orth",

+                     "match":"eq"

+                  }

+               }

+            ]

+         },

+         {

+            "@type":"korap:token",

+            "wrap":{

+               "@type":"korap:term",

+               "key":"geht",

+               "layer":"orth",

+               "match":"eq"

+            }

+         }

+      ]

+   }

 }
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