i.rows: 47
ii.columns: 5
iii.function: ngram-fingerprint, 120
iv.GREL_categoryname: if(value==null,'Unknown',value)
v.GREL_highpriced: if(toNumber(value)>90,1,0)
vi.GRE_hasoffer: if(contains(toLowercase(value), "offer") ,1,if(contains(toLowercase(value), "sale"), 1, if(contains(toLowercase(value), "discount"), 1, 0)))