What is the strain with the lowest maximum viable temperature whose biosafety level is biosafety level 1?
select ?ent where { ?ent wdt:P31 wd:Q855769 . ?ent wdt:P3252 ?obj . ?ent wdt:P1604 wd:Q18396533} ORDER BY ASC(?obj)LIMIT 5 
strain: Q855769 biosafety level 1: Q18396533