# Combined approach for RSA Re-implementation of the combined approach for CQ answering over RSA ontologies described in [[1](#references)]. > Please note that the prototype mentioned in [[1](#references)] is not available (and the contributors of this repository have never seen it); > therefore, this "re-implementation" could be completely different from that prototype (potentially using different tools and programming language). ## Preliminaries In order to use this program you need to have [RDFox](https://www.oxfordsemantic.tech/product) available in your system, along with a valid license. RDFox is proprietary software and as such we are not able to distribute it along with our code. Please refer to [this link](https://www.oxfordsemantic.tech/tryrdfoxforfree) to request a free trial. This software has been developed and tested with RDFox v.4.1 ## Using the software We assume you followed [these steps](https://docs.oxfordsemantic.tech/getting-started.html#getting-started) in order to setup RDFox on your personal machine and in particular you know the path to the `JRDFox.jar` library that comes with the distribution. ### Provide RDFox license The [documentation](https://docs.oxfordsemantic.tech/features-and-requirements.html#license-key), describes several ways to provide the license to RDFox. One easy way is to put your license key in a file `RDFox.lic` in `$HOME/.RDFox/`, with adequate read permissions for the user executing the program. ### Compiling and running the project The project uses [sbt](https://www.scala-sbt.org/) to manage dependences. To compile the project run the following from the base directory: ``` sbt compile ``` The project uses the sbt plugin [sbt-assembly](https://github.com/sbt/sbt-assembly) to produce a fat jar with all the required dependences. Run the following from the base directory of the project to produce a standalone `jar` file. ``` sbt assembly ``` The output of the command will print the location of the produced jar. Execute it with ``` java -jar [