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

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

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