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

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

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