Premise: MADRID, July 4 Nationalised Spanish lender Bankia and Barcelona-based peer Caixabank have mandated investment bank JP Morgan to explore the sale of more than 30 percent of olive oil company Deoleo, two sources close to the deal told Reuters on Thursday. (Reporting by Carlos Ruano and Jesus Aguado; Writing by Clare Kane; Editing by Sonya Dowsett)
Hypothesis: Caixabank contains a z