Added synonym.symbol key length of 333. Without a key length, mysql 5.7 flags a error that the key is too long.
Added synonym.symbol key length of 333. Without a key length, mysql 5.7 flags a error that the key is too long.

mpi2/PhenotypeData,mpi2/PhenotypeData,mpi2/PhenotypeData,mpi2/PhenotypeData,mpi2/PhenotypeData,mpi2/PhenotypeData