Generalized Sequential Patterns

Hallo,

I want start the program Generalized Sequential Patterns with the following data:

Customer Time_label prod1 prod2 prod3
customerA 1 true false false
customerA 2 false true false
customerA 3 false false true
customerB 1 true false false
customerB 2 false true false
customerB 3 false false true
customerC 1 true false false
customerC 2 false true false
customerC 3 false false true



My Code:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.3.005">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.3.005" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="retrieve" compatibility="5.3.005" expanded="true" height="60" name="Retrieve daten2" width="90" x="45" y="120">
        <parameter key="repository_entry" value="../data/daten2"/>
      </operator>
      <operator activated="true" class="generalized_sequential_patterns" compatibility="5.3.005" expanded="true" height="76" name="GSP" width="90" x="380" y="120">
        <parameter key="customer_id" value="Customer "/>
        <parameter key="time_attribute" value="Time_label "/>
        <parameter key="window_size" value="11.0"/>
        <parameter key="max_gap" value="5.0"/>
        <parameter key="min_gap" value="2.0"/>
        <parameter key="positive_value" value="true"/>
      </operator>
      <connect from_op="Retrieve daten2" from_port="output" to_op="GSP" to_port="example set"/>
      <connect from_op="GSP" from_port="patterns" to_port="result 1"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
      <portSpacing port="sink_result 2" spacing="0"/>
    </process>
  </operator>
</process>


Why no results are displayed?