user: Question: Which points classification shares a general classification of Bernard Hinault, a Trofeo Fast Tem of Bianchi, was won by Urs Freuler, and was stage 4?
Columns: ['Stage', 'Winner', 'General classification', 'Points classification', 'Trofeo Fast Team']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['P', 'Renault-Elf', 'Bernard Hinault', 'not awarded', 'Renault-Elf']
SQL:

assistant: SELECT "Points classification" FROM "Table" WHERE "General classification" = 'Bernard Hinault' AND "Trofeo Fast Team" = 'Bianchi' AND "Winner" = 'Urs Freuler' AND "Stage" = '4';