Jujutsu
A subset of techniques from certain styles of jujutsu was used to develop many modern martial arts and combat sports , such as Judo , sambo , ARB , Brazilian jiu-jitsu , and MMA . 
<triplet> martial arts <subj> combat sport <obj> subclass of <triplet> Judo <subj> martial arts <obj> subclass of <subj> combat sport <obj> subclass of <triplet> sambo <subj> martial arts <obj> subclass of <subj> combat sport <obj> subclass of <triplet> Brazilian jiu-jitsu <subj> martial arts <obj> instance of <triplet> MMA <subj> combat sport <obj> subclass of