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

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

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