Problem: Does "Koch's postulates can not be applied ethically for many human diseases because they require experimental infection of a healthy individual with a pathogen produced as a pure culture." answer the question "Why can't Koch's postulates be applied ethically for many human diseases?"

A: yes

Problem: Does "With scarce water resources, Israel has developed various water-saving technologies, including drip irrigation." answer the question "Israel developed what?"

A: yes

Problem: Does "58, written in 1844) are in four movements." answer the question "How many movements are in No. 2, Op. 35 and No. 3, Op 58?"

A:
yes