Automation of information extraction from labolatory reports

Hello Knime Community!

I need help, I want to extract specific information from lab reports. Train a model to identify such specific information and extract it whenever a lab report in loaded. The information to be extracted from PDF documents is the model number, test standard, range of radio frequency of operation, and the maximum radiated power. A sample document is shown below.

[Report]RED(RF)[300330]_A216A-293_LG Electronics Inc._PM22GN.pdf

I have been able to use the PDF Parser, followed by the Document Data Extractor and finally the Document Viewer in my workflow. However, I now dont know how to extract only the information that I want. I have many lab reports but they do not have the information at the same position. So I want to train a model to identify such information and automate the extraction of that information from lab reports.

Please kindly help, thank you.

Regards,

Kuddy