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

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

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