{Object} object with keys that are a subset of ["R1", "R2", "R3", "R4", "Uq", "Um"]. To be a valid
option there has to only exist one solution otherwise backend will fail. E.g. if R1 and R2 are missing there are
infinitely many solutions for R1 and R2.
Object represents a Wheatstone option. From this object a wheatstone task is generated and can be solved.