List all the first words of the biwords pair where the second word is 'antic'.
first words refer to w1st.word; second word is 'antic' refers to w2nd.word = 'antic'
SELECT T1.word FROM words AS T1 INNER JOIN biwords AS T2 ON T1.wid = T2.w1st WHERE T2.w2nd = ( SELECT wid FROM words WHERE word = 'antic' )