         ‘Senténce When:iiias laud axyegh developed  fot commercial use?    Sentence’ -2: The ‘first “commercially: viable  process- for : producing’ Jliguid. .oxygen”. was  independently: ‘developed: in 1895 -by “German  ‘éngineer Carl. von. Linde ‘and -British’ enginéer  Williars' Hampson.    