Find the first names of all the authors who have written a paper with title containing the word 'Functional'.
CREATE TABLE papers (
    paperid VARCHAR,
    title VARCHAR
)

CREATE TABLE authorship (
    authid VARCHAR,
    paperid VARCHAR
)

CREATE TABLE authors (
    fname VARCHAR,
    authid VARCHAR
)
SELECT t1.fname FROM authors AS t1 JOIN authorship AS t2 ON t1.authid = t2.authid JOIN papers AS t3 ON t2.paperid = t3.paperid WHERE t3.title LIKE "%Functional%"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Find the first names of all the authors who have written a paper with title containing the word 'Functional'. ### Input: CREATE TABLE papers (
    paperid VARCHAR,
    title VARCHAR
)

CREATE TABLE authorship (
    authid VARCHAR,
    paperid VARCHAR
)

CREATE TABLE authors (
    fname VARCHAR,
    authid VARCHAR
) ### Response: SELECT t1.fname FROM authors AS t1 JOIN authorship AS t2 ON t1.authid = t2.authid JOIN papers AS t3 ON t2.paperid = t3.paperid WHERE t3.title LIKE "%Functional%"