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

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

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