*SUPPORT*
IN: wif wif tufa tufa dax lug fep OUT: YELLOW YELLOW PURPLE PURPLE GREEN RED RED
IN: wif kiki dax OUT: YELLOW GREEN YELLOW GREEN
IN: fep OUT: RED
IN: tufa wif kiki wif lug wif OUT: PURPLE YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: fep kiki dax OUT: RED GREEN RED GREEN
IN: tufa kiki fep OUT: PURPLE RED PURPLE RED
IN: dax kiki tufa OUT: GREEN PURPLE GREEN PURPLE
IN: dax OUT: GREEN
IN: tufa kiki dax OUT: PURPLE GREEN PURPLE GREEN
IN: dax dax OUT: GREEN GREEN
IN: fep kiki wif blicket tufa OUT: PURPLE RED YELLOW RED YELLOW
IN: fep dax dax OUT: RED GREEN GREEN
IN: dax kiki dax OUT: GREEN GREEN GREEN GREEN
IN: fep kiki tufa OUT: RED PURPLE RED PURPLE

*QUERY*
IN: tufa blicket fep OUT: RED PURPLE
IN: fep blicket tufa OUT: PURPLE RED
IN: tufa kiki tufa OUT: PURPLE PURPLE PURPLE PURPLE
IN: dax kiki wif OUT: GREEN YELLOW GREEN YELLOW
IN: dax kiki fep OUT: GREEN RED GREEN RED
IN: tufa OUT: PURPLE
IN: tufa kiki wif lug wif OUT: PURPLE YELLOW PURPLE YELLOW YELLOW YELLOW
IN: wif OUT: YELLOW
IN: wif kiki wif OUT: YELLOW YELLOW YELLOW YELLOW
IN: fep kiki wif blicket tufa blicket wif OUT: YELLOW PURPLE RED YELLOW RED YELLOW

*GRAMMAR*
wif -> YELLOW 
 tufa -> PURPLE 
 dax -> GREEN 
 fep -> RED 
 x1 blicket u1 -> [u1] [x1] 
 u1 kiki u2 -> [u1] [u2] [u1] [u2] 
 x1 lug x2 -> [x1] [x2] [x2] 
 u1 x1 -> [u1] [x1] 
 