lkab lkal lkan llan llat llcc llet lllc llll lnnk lntc ltac ltae ltbl ltcc ltee ltke ltnt lttc naaa naab naac naal naan naat naba nabc nabe nabk nabl naca nacc nace nack nacl naea nael naka nake nala nalc nale nall nalt nan- nana nanb nane nann nant nata natc nate natl natt nbaa nbak nbbc nbca nbcc ncaa ncac ncat ncba ncbc ncca nccc nccn ncct ncea ncec ncee ncel ncen nclc ncln ncna ncnc ncta nctc ncte neab neac neal nean neat neba nebb nebe nebn neca necc nece neck nect neea neeb neel neen neet neka neke nela nelc nele nell nelt nena nene nent net- neta netb nete nett nknt nlab nlat nlcc nlec nnnn nntn ntbc ntcc ntla taa- taal taan taat taba tabb tabc tabe tabl taca tacc tace tack tacl tact taec tael taen taka take takk takt tala talc tale talk tall tana tane tank tann tant tata tatb tate tatt tbca tbcb tbcc tbce tbta tcca tccc tcnn tctc teac teak teal tean teat teba teca teck tecl tect teec teek teel teen teet teka teke tel- tela telc tele tell teln telt tena tenb tenc tene tenk tenn tent teta tete tett tkac tlac tlen tnbc tnca tncc tneb tnla ttab ttbb ttcn tten tttt