Identify the grammatical structures and their corresponding questions, as presented in the image.

Analysis of Grammatical Structures:

The image displays two main grammatical schemes, each illustrating a relationship between a grammatical case/form and a question it answers.

• Scheme 1:
  • П. — Ск.
  • какая? (which/what kind?) is linked to Вт. чл. (instrumental case)
  • где? (where?) is linked to Вт. чл. (instrumental case)
• Scheme 2:
  • Ск. — П.
  • где? (where?) is linked to Вт. чл. (instrumental case)
  • какой? (which/what kind?) is linked to Вт. чл. (instrumental case)

Note: 'П.' likely refers to a Nominative case or a pronoun, and 'Ск.' likely refers to a case form, possibly accusative or genitive, and 'Вт. чл.' stands for 'винительный член' (accusative case) or simply 'второй член' (second member) depending on the context of the lesson.

Summary of correspondences:

• The question 'какая?' (which/what kind?) is associated with the instrumental case.
• The question 'где?' (where?) is associated with the instrumental case.
• The question 'какой?' (which/what kind?) is associated with the instrumental case.