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

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

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