According to criterion of constraint by A.W. Klein
(a) J + 1/2 H = 3/2L – 2
(b) H + 1/2J = 2/3L – 2
(c) J + 1/2H = 3/2L – 1
(d) J + 3/2H = 1/2L – 2
The question was posed to me in examination.
This intriguing question comes from Application of Kutzbach Criterion to Plane Mechanisms in portion Simple Mechanisms of Machine Kinematics