*SUPPORT*
IN: zup tufa zup OUT: PURPLE PURPLE
IN: kiki tufa wif gazzer fep OUT: GREEN PINK YELLOW
IN: wif tufa wif OUT: PINK PINK
IN: kiki tufa wif gazzer zup OUT: GREEN PINK PURPLE
IN: zup wif tufa fep OUT: PURPLE PINK YELLOW
IN: fep tufa wif OUT: YELLOW PINK
IN: wif OUT: PINK
IN: zup zup tufa kiki OUT: PURPLE PURPLE GREEN
IN: kiki blicket kiki OUT: GREEN GREEN
IN: kiki wif kiki tufa wif gazzer fep OUT: GREEN PINK GREEN PINK YELLOW
IN: zup fep blicket wif blicket kiki OUT: PURPLE YELLOW PINK GREEN
IN: kiki gazzer zup gazzer wif gazzer zup OUT: GREEN PURPLE PINK PURPLE
IN: zup OUT: PURPLE
IN: fep gazzer wif OUT: YELLOW PINK

*QUERY*
IN: zup fep tufa wif gazzer fep blicket fep OUT: PURPLE YELLOW PINK YELLOW YELLOW
IN: wif gazzer wif gazzer wif OUT: PINK PINK PINK
IN: kiki gazzer zup gazzer zup OUT: GREEN PURPLE PURPLE
IN: wif wif zup OUT: PINK PINK PURPLE
IN: fep OUT: YELLOW
IN: wif tufa zup blicket wif OUT: PINK PURPLE PINK
IN: zup blicket wif blicket fep OUT: PURPLE PINK YELLOW
IN: kiki OUT: GREEN
IN: zup tufa wif blicket wif blicket zup OUT: PURPLE PINK PINK PURPLE
IN: wif wif tufa wif OUT: PINK PINK PINK

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