*SUPPORT*
IN: wif lug fep lug zup OUT: RED PINK PURPLE
IN: wif blicket dax zup OUT: PURPLE GREEN RED
IN: fep lug wif blicket lug wif dax wif OUT: PURPLE PURPLE PURPLE GREEN PINK
IN: zup zup lug zup kiki wif OUT: RED RED RED PURPLE RED
IN: zup kiki blicket OUT: RED RED GREEN
IN: blicket OUT: GREEN
IN: fep wif kiki blicket OUT: PINK PURPLE PURPLE GREEN
IN: zup dax blicket OUT: RED GREEN
IN: zup OUT: RED
IN: blicket lug zup lug wif lug wif OUT: PURPLE PURPLE RED GREEN
IN: wif wif lug fep kiki fep OUT: PURPLE PINK PINK PINK PURPLE
IN: wif OUT: PURPLE
IN: blicket dax wif OUT: GREEN PURPLE
IN: fep kiki blicket OUT: PINK PINK GREEN

*QUERY*
IN: fep lug wif blicket lug fep wif OUT: PURPLE PINK PURPLE GREEN PINK
IN: zup dax wif OUT: RED PURPLE
IN: fep lug zup lug wif lug fep OUT: PINK PURPLE RED PINK
IN: wif lug fep dax zup OUT: PINK RED PURPLE
IN: blicket blicket wif wif kiki fep OUT: GREEN GREEN PURPLE PURPLE PURPLE PINK
IN: zup kiki fep OUT: RED RED PINK
IN: blicket lug blicket blicket lug zup OUT: GREEN RED GREEN GREEN
IN: wif kiki fep OUT: PURPLE PURPLE PINK
IN: zup zup dax blicket OUT: RED RED GREEN
IN: zup zup OUT: RED RED

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