<s>
MacroML	B-Application
is	O
an	O
experimental	O
programming	O
language	O
based	O
on	O
the	O
ML	B-Language
family	O
,	O
seeking	O
to	O
reconcile	O
ML	B-Language
's	O
static	O
typing	O
and	O
the	O
types	O
of	O
macro	O
systems	O
commonly	O
found	O
in	O
dynamically	O
typed	O
languages	O
like	O
Scheme	B-Language
;	O
this	O
reconciliation	O
is	O
difficult	O
since	O
Turing-complete	O
macro	O
transformations	O
can	O
break	O
type	B-Language
safety	I-Language
guarantees	O
that	O
static	O
typing	O
is	O
supposed	O
to	O
provide	O
.	O
</s>
