It would be wrong to conclude that a person has a Streptococcus infection if there is no other evidence than the fact that Streptococcus bacilli are present in the person' s throat; after all, infection does not occur unless the host is physically run down
Even if a healthy lavender plant receives six or more hours of direct sunlight each day, one cannot predict on that basis alone that the plant will bloom, because lavender requires both six or more hours of sunlight per day and slightly alkaline soil to bloom.