diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -32,6 +32,9 @@ dependencies:
   '@types/fpsmeter':
     specifier: ^0.3.34
     version: 0.3.34
+  '@types/lodash':
+    specifier: ^4.17.4
+    version: 4.17.4
   '@types/n3':
     specifier: ^1.16.4
     version: 1.16.4
@@ -74,6 +77,9 @@ dependencies:
   lit:
     specifier: ^2.8.0
     version: 2.8.0
+  lodash:
+    specifier: ^4.17.21
+    version: 4.17.21
   n3:
     specifier: ^1.17.3
     version: 1.17.3
@@ -935,6 +941,10 @@ packages:
     resolution: {integrity: sha512-WCfD5Ht3ZesJUsONdhvm84dmzWOiOzOAqOncN0++w0lBw1o8OuDNJF2McvvCef/yBqb/HYRahp1BYtODFQ8bRg==}
     dev: false
 
+  /@types/lodash@4.17.4:
+    resolution: {integrity: sha512-wYCP26ZLxaT3R39kiN2+HcJ4kTd3U1waI/cY7ivWYqFP6pW3ZNpvi6Wd6PHZx7T/t8z0vlkXMg3QYLa7DZ/IJQ==}
+    dev: false
+
   /@types/ms@0.7.34:
     resolution: {integrity: sha512-nG96G3Wp6acyAgJqGasjODb+acrI7KltPiRxzHPXnP3NgI28bpQDRv53olbqGXbfcgF5aiiHmO3xpwEpS5Ld9g==}
     dev: false