*SUPPORT*
IN: dax tufa fep wif OUT: YELLOW GREEN PINK
IN: tufa zup OUT: PINK PINK PINK PINK
IN: wif blicket wif OUT: GREEN RED GREEN
IN: wif zup kiki OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: tufa fep blicket OUT: RED PINK
IN: dax zup OUT: YELLOW YELLOW YELLOW YELLOW
IN: dax OUT: YELLOW
IN: wif kiki OUT: GREEN GREEN
IN: wif tufa fep dax OUT: GREEN YELLOW PINK
IN: blicket zup kiki OUT: RED RED RED RED RED RED RED RED
IN: wif fep tufa OUT: PINK GREEN
IN: wif OUT: GREEN
IN: blicket blicket fep wif kiki OUT: RED GREEN RED RED GREEN RED
IN: blicket fep blicket OUT: RED RED

*QUERY*
IN: dax dax fep tufa OUT: YELLOW PINK YELLOW
IN: tufa wif blicket fep wif OUT: PINK GREEN GREEN RED
IN: dax fep blicket OUT: RED YELLOW
IN: tufa OUT: PINK
IN: blicket zup OUT: RED RED RED RED
IN: blicket OUT: RED
IN: wif zup OUT: GREEN GREEN GREEN GREEN
IN: dax blicket fep dax kiki OUT: YELLOW YELLOW RED YELLOW YELLOW RED
IN: tufa fep tufa OUT: PINK PINK
IN: wif dax fep dax OUT: GREEN YELLOW YELLOW

*GRAMMAR*
dax -> YELLOW 
 tufa -> PINK 
 wif -> GREEN 
 blicket -> RED 
 u1 fep u2 -> [u2] [u1] 
 x1 kiki -> [x1] [x1] 
 u1 zup -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 