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

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

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