bbb bbi bbn bbo bbs bbw bi- bib bii bin bio bis biw bnb bni bnn bno bns bnw bob boi bon boo bos bow bsb bsi bsn bso bss bsw bwb bwi bwo bws ibb ibi ibn ibo ibs ibw iib iii iin iio iis iiw in- inb ini inn ino ins io- iob ioi ion ioo ios iow is- isb isi isn iso iss isw iwb iwi iwo iws iww n-i nbb nbi nbn nbo nbs nbw nib nii nin nio nis nnb nni nnn nno nns nnw no- nob noi non noo nos now nsb nsi nsn nso nss nsw nwb nwi nwn nwo nws o-i ob- obb obi obn obo obs obw oib oii oin oio ois on- onb oni onn ono ons oo- oob ooi oon ooo oos oow os- osb osi osn oso oss osw owb owi own owo ows oww sbb sbi sbn sbo sbs sbw sib sii sin sio sis siw snb sni snn sno sns snw sob soi son soo sos sow ss- ssb ssi ssn sso sss ssw swb swi swn swo sws wbb wbi wbn wbo wbs wbw wib wii win wis wn- wnn wno wns wnw wob woi won woo wos wow wsb wsi wsn wso wss wsw wwi wwn wwo www