!7

static withToList record Did$HappenBefore$(O event1, O event2) {}
static withToList record WhenDid$Happen(O event) {}
static withToList record $HappensAtSecond$(O event, O y) {}

sO parseArg(S s) { ret isInteger(s) ? parseInt(s) : s; }
sO parse(S s) { ret defaultClassesAndPatterns().parse(s, if1 parseArg); }

p-exp {
  testFunctionValues parse(
    "Did X happen before Y?" := Did$HappenBefore$("X", "Y"),
    "when did Z happen" := WhenDid$Happen("Z"),
    "{event 1} happens at second 100" := $HappensAtSecond$("event 1", 100)
  );
}