Calling a PCR inside another PCR

Hi Experts

I have a requirement where I should call a PCR in another PCR. Suppose ZWTM is a pcr which has T/F as return value.

It is used in another rule say ZKTM say by using PCYGZWTM. If ZWTM returns T then remaining branches of ZKTM has

to get executed. How can I capture the return value T/F of ZWTM inside rule ZKTM without IF and ENDIF.

Thanks in advance