Which relative clauses are OK? Which is more colloquial?<br/><br/>1) the table whose colour is brown<br/><br/>2) the table of which colour is brown<br/><br/>3) the table which colour is brown<br/><br/>4) the table the colour of which is brown<br/><br/>5) the table which is of brown colour<br/><br/>Thank you for your answers Mowgli