Seven persons A, B, C, D, E, F, and G like seven different colours: Yellow, White, Red, Orange, Blue, Grey, and Black. They visit a mall on different ...

Seven persons A, B, C, D, E, F, and G like seven different colours: Yellow, White, Red, Orange, Blue, Grey, and Black. They visit a mall on different days of the week from Monday to Sunday.

Based on the following conditions, answer the question:

1. A visits on a day after Thursday.
2. Exactly 4 persons visit between A and B.
3. The person who likes Red visits immediately after B.
4. Exactly one person visits between the persons who like Red and Blue.
5. The person who likes White visits before the day C visits.
6. The person who likes White does not visit on Monday.
7. D visits before E.
8. Exactly one person visits between D and E. D likes Yellow.
9. The number of persons between A and the person who likes Blue is one less than the number of persons between B and C.
10. Neither G nor F likes Black or White.
11. G and E do not visit on Saturday, and G does not like Grey.

Question: The person who visits immediately before F likes which colour?