p2mm or (+2.2.2.2.)
p21mc or (+2:2.2:2.)
p2cc or (+2:2:2:2:)
p2ma or (2_02_0+.)
p21ca or (2_12_1+:)
p2cn or (2_02_0+:)
p21mn or (2_12_1+.)
p2ba or (2_02_0)o+
p21bn or (2_12_1)o+
p2nn or (2_02_0')o+
c2mm or (2_0+2.2.)
c21mc or (2_1+2:2.)
c2cc or (2_0+2:2:)
a2mm or (+2.2.2:2.)
a2ma or (2_02_1+.)
a2bm or (+2:2:2:2.)
a2ba or (2_02_1+:)
f2mm or (+2.2:2:2.)
f2dd or (2_02_1)o+
i2mm or (2_1+2.2.)
i21mc or (2_0+2:2.)
i2cc or (2_1+2:2:)