rit ious ▁food . ▁x xx ▁In ▁her ▁work , ▁pet ition er ▁also ▁has ▁to ▁cont end ▁with ▁the ▁natural ▁elements , ▁like ▁the ▁inc lement ▁weather ▁— ▁heavy ▁ra ins , ▁ty ph o ons ▁— ▁as ▁well ▁as ▁dust ▁— ▁and ▁disease - rid den ▁surr ound ings ▁peculiar ▁to ▁an ▁ins an it ary ▁sl um ▁area . ▁x xx ▁These ▁un wh oles ome ▁conditions ▁are ▁" normal ▁and ▁consist ently ▁present ▁in " ▁or ▁are ▁the ▁" h az ards ▁peculiar ▁to " ▁the ▁occupation ▁of ▁a ▁public ▁high ▁school ▁teacher . ▁It ▁is ▁therefore ▁evident ▁that ▁r he um ato id ▁ar th rit is ▁and ▁p neum on itis ▁are ▁the ▁" natural ▁inc idents " ▁of ▁pet ition er ' s ▁occupation ▁as ▁such ▁public ▁high ▁school ▁teacher . ▁x xx ▁It ▁must ▁be ▁bor ne ▁in ▁mind ▁that ▁pet ition er ▁was ▁a ▁teacher ▁of ▁the ▁R aja ▁Sol iman ▁High ▁School ▁which ▁is ▁located ▁in ▁the ▁heart ▁of ▁Bin ondo ▁District . ▁She ▁was ▁constantly ▁exposed ▁to ▁the ▁heavily ▁poll uted ▁air ▁and ▁con g estion ▁( squ atter ' s ▁area ) ▁characteristic ▁of ▁the ▁area . ▁She ▁was ▁not ▁only ▁exposed ▁to ▁the ▁elements ▁- ▁varying ▁degrees ▁of ▁temperature ▁throughout ▁the ▁day ▁and ▁night ▁- ▁but ▁also ▁had ▁to ▁with stand ▁long ▁hours ▁of ▁standing ▁while ▁performing ▁her ▁teaching ▁job . ▁Like wise , ▁she ▁had ▁to ▁regularly ▁negoti ate ▁long ▁tri ps ▁from ▁her ▁home ▁in ▁Project ▁ 2