By-example data query for AutomationML using tree patterns

# By-example AML Query
This data set contains explementary data to demonstrate the utility of By-example data query in AutomationML
## AML Source Data
* The original AML data is stored in `RobotCell.aml`.
* The excerpt of the original AML data used in the paper is stored in `data.aml`.
## Query models
* The query examples used in the paper is stored in `query.aml`. There are four CAEX instance hierarchies containing various query examples:* TII2019Examples: queries shown in the paper* LinkExamples: queries that contain internal links, also shown in the paper* FutherExamples: queries that are not shown in the paper but can be tested on the `data.aml` and `RobotCell.aml` files.* ComplexExamples: complex queries that are not shown in the paper. They will produce empty sets on the given data files. You can also add your own query models here.
## Query results
* The (simple) console output of the experiments are stored in `console_output_tii.txt`. Simple means that we are only printing the names of the result XML elements, see below.* The Automation serialization of the outputs can be found in `output_tii.aml`.