<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.zaidi ya wabunge 70 wa marekani jana walimuandikia barua rais wa nchi hiyo joe biden wakimtaka afanye juhudi za kukomeshwa kuzingirwa kidhulma yemen.  <response>: more than 100 u.s. lawmakers sent a letter to president bush last year asking him to lobby chinese president hu jiantao for yangs release. 