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

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

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