{def compare
 {lambda {:a :b}
  {if {< :a :b}
   then :a is lesser than :b
   else {if {> :a :b}
   then :a is greater than :b
   else :a is equal to :b}}}}

{compare 1 2}
-> 1 is lesser than 2

{compare 2 1}
-> 2 is greater than 1

{compare 1 1}
-> 1 is equal to 1