@RELATION 'quotes'
@ATTRIBUTE 'theNumeric' NUMERIC
@ATTRIBUTE "theInteger" INTEGER
@ATTRIBUTE theReal REAL
@ATTRIBUTE theNominal {"double-quote", 'single-quote', no-quote}
@DATA
1.0,2,3.0,"no-quote"
4.0,5,6.0,single-quote
7.0,8,9.0,'double-quote'