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

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

*GRAMMAR*
wif -> GREEN 
 lug -> BLUE 
 tufa -> RED 
 gazzer -> PURPLE 
 u1 fep u2 -> [u2] [u1] 
 u1 zup -> [u1] [u1] 
 x1 dax x2 -> [x2] [x2] [x2] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 