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

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

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