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

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

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