sentences:  They embraced irrationality, improvisation, intuition, and aimed create extreme experiences.Their shows were held in makeshift venues between 1999 and 2003, and in an effort to have spontaneous context-specific responses, their exhibitions were premised on self-imposed rules that each artist reacted to individually at the exhibition site.Since China's entry into the World Trade Organization, the artists have become more tolerant of Western collectors.” Liu Wei’s contribution to the 1999 exhibition was a multichannel video called "Hard to Restrain".