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

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

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