Update README.md

README.md

@@ -5,3 +5,17 @@ This service is created for the qanary-explanations-service. It's used to read t
 ## Usage
 This service is used with the included Qanary-components repository as a submodule as it's path is hard-coded yet. 
 To use this tool it is also required to use the Qanary-commons version provided in <INSERT-HERE> since this includes the log-writing to files.
+
+
+## Prequisteries
+This service uses the Qanary-components-repository as a submodule and these components should be used when running a Qanary pipeline. Therefore this approach is a local one. 
+
+## Functioning
+The service finds the paths to the local components where the log files are stored. In a scheduled method these log files are parsed and the queries are stored in a triplestore. The data which is stored follows this pattern:
+
+```sparql
+?component ex:hasAnnotationType ?annotationType .
+?annotationType ex:hasInputQuery ?inputQuery
+```
+
+Afterwards this data can be fetched to receive component, annotationType and the query. Within the qanary-explanation-service this data can be used to create explanation for input data.