List elseSymbols = new ArrayList();
elseSymbols.add(new ElementSymbol("b1")); //$NON-NLS-1$
Select elseSelect = new Select(elseSymbols);
From from = new From();
from.addGroup(new GroupSymbol("g")); //$NON-NLS-1$
Criteria criteria = new CompareCriteria(new ElementSymbol("a2"), CompareCriteria.EQ, //$NON-NLS-1$
new Constant(new Integer(5)));
Query elseQuery = new Query();