user: Question: Who was the lyricist for Gopal Krishna and co singer of Solo?
Columns: ['Year', 'Song name', 'Film name', 'Co-singer', 'Music director', 'Lyricist', 'Language']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1980.0, '"Mohabbat Ek Wada Hai"', 'Kali Ghata', 'Asha Bhosle', 'Laxmikant-Pyarelal', 'Anand Bakshi', 'Hindi']
SQL:

assistant: SELECT "Lyricist" FROM "Table" WHERE "Film name" = 'Gopal Krishna' AND "Co-singer" = 'Solo';