diff --git a/src/query.js b/src/query.js
index f12fbec..e8ef8f5 100644
--- a/src/query.js
+++ b/src/query.js
@@ -1,8 +1,8 @@
-import { defineQuery, hasComponent, pipe } from 'bitecs'
+import { defineQuery, hasComponent } from 'bitecs'
 import { query as q } from './query-parser/index.js'
 import { parseAll } from './parser.js'
 import { curry, of, is, reduce, flip, concat, map } from './fn.js'
-import { Edge, Node, Relationship } from './query-parser/types.js'
+import { Relationship } from './query-parser/types.js'
 
 /*
  * necessary engine structure
@@ -10,13 +10,6 @@ import { Edge, Node, Relationship } from './query-parser/types.js'
  * Component: Component[]
  */
 
-const isEmpty = obj => {
-  for (const _ in obj) {
-    return false
-  }
-  return true
-}
-
 const prepareQuery = (query, component) => {
   const { match, returnValues } = query
   const relationship = is(Relationship, match)