Match the instruments in Column I with the various types

1. P-3, Q-4, R-2, S-5
2. P-2, Q-4, R-1, S-5
3. P-5, Q-3, R-2, S-1
4. P-3, Q-4, R-2, S-1

Column I	Column II
P. Cross staff	1. Indoor wall to wall measurement
Q. Alidade	2. Traversing
R. Sextant	3. Chain survey
S. Distomat	4. Plane table survey
	5. Contour survey