CREATE TABLE inst (instid NUMBER, name CLOB, country CLOB)
CREATE TABLE authors (authid NUMBER, lname CLOB, fname CLOB)
CREATE TABLE papers (paperid NUMBER, title CLOB)
CREATE TABLE authorship (authid NUMBER, instid NUMBER, paperid NUMBER, authorder NUMBER)

What is the first name of the author with last name 'Ueno'?
SELECT fname FROM authors WHERE lname = "Ueno"
SELECT "fname" FROM "authors" WHERE "Ueno" = "lname"