The resistor R1 and the two capacitors {HEAD ~ C1} and C2 serve to dimension {TAIL ~ the circuit} 
serve to dimension
The resistor R1 and the two capacitors { HEAD ~ C1 } and C2 serve to dimension { TAIL ~ the circuit }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL