* The query &test1(off,7,Passed).& tests the reverse predicate:
test(7,`[[n,reverse],[[1,2,3],[],[v,l]]]`,
`[[[n,reverse],[[],[v,l],[v,l]]],[[n,reverse],[[v,l],[v,m],[v,n]],":-",[[[n,head],[[v,l],[v,h]]],[[n,tail],[[v,l],[v,t]]],[[n,wrap],[[v,h],[v,h1]]],[[n,append],[[v,h1],[v,m],[v,o]]],[[n,reverse],[[v,t],[v,o],[v,n]]]]]]`,
`[[[v,l], [3, 2, 1]]]`).

# Documentation

* The interpreter is called in the form:
&international_interpret([lang,en]&,debug,query,type_statements,mode_statements,functions,result).

Where:
debug - on or off for trace,
query - the query e.g. [[n,reverse],[[1,2,3],[],[v,l]]]
type statements - e.g. [[n,reverse],[{[t, number]}, {[t, number]}, {[t, number]}]]
mode statements - e.g. [[n,reverse],[input,input,output]]
functions - the algorithm e.g. see reverse above
result - the result, e.g. [[[v,l], [3, 2, 1]]] ([] indicates failed and [[]] indicates the empty list).

* Statements may be negated in the form:

`[[n,not],[statement]]`

* Statements may be connected by the disjunctive (or):

`[[n,or],[statements1,statements2]]`

* If-then statements may either be in the form:

`[[n,"->"],[statements1,statements2]]`

This means "If Statements1 then Statements2".