Structure of D4

bam po 1.
MW22084: 1b1
MW3CN20612: 1b1
MW4CZ5369: 1b1
MW30532: 1b1
bam po 2.
MW22084: 13a7
MW3CN20612: 13a7
MW4CZ5369: 13a7
MW30532: 13a7