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

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"