Problem With Modify Relationship Sims 4 Cheat

Hello, I need help with a cheat on the Sims 4! First of all, I don't have any expansion packs, only the base game.
I'm trying to use the Modify Relationship cheat. This is the modifyrelationship firstname lastname targetfirstname targetlastname number LTR_friendship_main cheat. There's a problem with this cheat that does not address sims with a space in their first name. When I use the cheat on any sim with a single word first name, the cheat works. But I have two sims with spaces in their first name, and this throws the cheat off and it doesn't work. I tried deleting the space between their name but it doesn't work, and I tried deleting both halves of their first name and it still doesn't work. I've also tried all sorts of number values from 0-100 with no luck. For example, I'll use the name Billy Bob Joe, with Billy Bob being a first name and Joe being the last for the target sim's name.

modifyrelationship sam newbie billy bob joe 100 LTR_friendship_main Doesn't work

modifyrelationship sam newbie billybob joe 100 LTR_friendship_main Doesn't work

modifyrelationship sam newbie billy joe 100 LTR_friendship_main Doesn't work

modifyrelationship sam newbie joe 100 LTR_friendship_main Doesn't work

I've tried all of these methods and I can't get it to work. The cheat works absolutely fine on sims with no spaces in their names. Can someone help?