using ruta, annotate a line containing annotation and extract required data - uima

Question

Annotate a line containing specific annotations in order to extract text. Annotate line for Borrower and Co-Borrower and get their respective SSNs
Borrower Name: Alice Johnson SSN: 123-456-7890
Co-Borrower Name: Bob Symonds SSN: 987-654-3210
code
PACKAGE uima.ruta.test;
TYPESYSTEM utils.PlainTextTypeSystem;
ENGINE utils.PlainTextAnnotator;
EXEC(PlainTextAnnotator, {Line});
DECLARE Borrower, Name;
DECLARE BorrowerName(String value, String label);
CW{REGEXP("\\bBorrower") -> Borrower} CW{REGEXP("Name") -> Name};
Borrower Name COLON n:CW[1,3]{-> CREATE(BorrowerName, "label"="Borrower Name", "value"=n.ct)};
DECLARE SSN;
DECLARE BorrowerSSN(String label, String value);
W{REGEXP("SSN") -> SSN};
SSN COLON n:NUM[3,3]{-> CREATE(BorrowerSSN, "label"="Borrower SSN", "value"=n.ct)};
DECLARE Co;
CW{REGEXP("Co") -> Co};
DECLARE CoBorrowerName(String label, String value);
Co Borrower Name COLON n:CW[1,3]{-> CREATE(CoBorrowerName, "label"="Co-Borrower Name", "value"=n.ct)};
DECLARE BorrowerLine;
Line{CONTAINS(Borrower),CONTAINS(Name)->MARK(BorrowerLine)};
Please suggest how to annotate a line containing annotation and get specific label value for required annotation.

Answer 1

To spare yourself from handling the separate strings, you could gather all the indicators to a wordlist (i.e., a text file containing one indicator per line) and place it in your project resources folder (see this for more details). Then you could just mark all the indicators with the desired indicator type:
WORDLIST IndicatorList ='IndicatorList.txt';
DECLARE Indicator;
Document{->MARKFAST(Indicator, IndicatorList )};
This would output Indicator helper annotations like "Borrower Name".
Once you have that, you could now iterate over the lines and find the target annotations.
DECLARE Invisible;
SPECIAL{-PARTOF(Invisible), REGEXP("[-]")-> Invisible};
BLOCK(line) Line{CONTAINS(Indicator)}{
//Ex. pattern: Borrower Name: Alice Johnson SSN: 123-456-7890
Indicator COLON c:CW[1,3]{-> CREATE(BorrowerName, "label"="Borrower Name", "value"=c.ct)} Indicator;
FILTERTYPE(Invisible);
Indicator COLON n:NUM[3,3]{-> CREATE(BorrowerSSN, "label"="BorrowerSSN", "value"=n.ct)};
REMOVEFILTERTYPE(Invisible);
}
Hope this helps.

Answer 2

Addition to Viorel's answer:
The PlainTextAnnotator creates annotations of the type Line and these annotation cover the complete line, which means that leading or trailing whitespaces are also included. As a consequence, the resulting annotations are not visible for the following rules. In order to avoid this problem, you could for example trim the whitespaces in these annotations:
EXEC(PlainTextAnnotator, {Line});
ADDRETAINTYPE(WS);
Line{-> TRIM(WS)};
REMOVERETAINTYPE(WS);