added hyphen post prefix

call.js

@@ -13,7 +13,7 @@ function make_phrase (nn, terms) {
   nn.querySelector(".actor").innerHTML = choice(terms['actor']);
   nn.querySelector(".action").innerHTML = choice(terms['action']);
   if (randint(0, 2) == 0) {
-    nn.querySelector(".prefix").innerHTML = choice(terms['prefix']);
+    nn.querySelector(".prefix").innerHTML = choice(terms['prefix'])+'-';
   } else {
     nn.querySelector(".prefix").remove();
   }