
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
In the Cartesian coordinate system $xOy$, the parametric equation of line $l$ is given by $\begin{cases} x=t\cos \alpha \\ y=t\sin \alpha\end{cases}$ (where $t$ is a parameter, $0 < \alpha < \pi$). With the origin $O$ as the pole and the positive half-axis of $x$ as the polar axis, the polar coordinate equation of curve $C$ is $\rho= \frac {p}{1-\cos \theta}(p > 0)$.  
(Ⅰ) Write the polar coordinate equation of line $l$ and the Cartesian coordinate equation of curve $C$;  
(Ⅱ) If line $l$ intersects curve $C$ at points $A$ and $B$, find the value of $\frac {1}{|OA|}+ \frac {1}{|OB|}$.

Present the answer in LaTex format: \boxed{Your answer}
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