human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Date(s) conducted, Polling organisation/client, Cons, Plaid Cymru, Lib Dem, Others, Lead
###Question: I want the plaid cymru for 4 may 2011
gpt
SELECT Plaid Cymru FROM table WHERE Date(s) conducted = 4 may 2011