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

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

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