/*
table
{
   name = "person";
   column { name = "first_name"; type = "string"; }
   column { name = "last_name"; type = "string"; }
}
*/

a = b;
if (a) a = c;
while (a) if (a) a = c;
if (a) a = b; else a = c;
if (a) if (b) x = y; else x = z;
if (a) if (b) x = y; else x = z; else x = w;