The JU combination can be drawn in three ways. Firstly through simple connection. Secondly by simple connection and the connection of the "J hook" to the upper line of the U to create an enclosed right angled space. Thirdly by attaching the U underneath the lower left end of the "J hook".
I actually do not require strict attribution as the licence indicates. I realize the "puzzle" value would be lost I will galdly provide express exemptions for your projects Please contact me at firstname.lastname@example.org